I find avoidance rarely solves the problem. But often running right at the problem is a scary but most expediant way to solve it.
It's hard to get out of a mindset because it will leave a void and, well, Nature abhors a vaccum. Instead all you have to do is reframe how you approach thinking about these artists. This will be a slow and gradual process, because it'll be about shifting how you think about yourself, what you can control, and what you cannot.
Before anything, one's success is never in one's control, not really. All we can do as artists is hone our craft and put ourselves out there in the most authentic way possible. Especially if we want a lasting impact and legacy. Success will not rub off on you, it's not an objective thing.
Success is the progressive realization of a worthy Ideal (quote from Earl Nightingale). So long as you are working toward what you consider your worthy ideal (not what 'everyone else' considers) then you are successful.
Cause most people aren't willing to work. Most people aren't willing to recognize that "success" is not an ending that never changes! It's a constant process of choosing who you are, who you want to be, and what you're willing to DO to reach your chosen ideal.
No one who was ever successful knew with certainty they were going to succeed. More often than not they wallow in doubt like the rest of us. Those truly successful people focused solely on what was in their control: their choice of goals and their actions.
Now, a couple points. Starting with advice I learnt from Neil Gaiman in his Commencement speech to a college of the arts:
"The urge starting out is to copy. And that's not a bad thing! Many of us only find our voice (or art style) after we've sounded (looked) like a lot of others."
This is how we learn what we like and what we enjoy making on the path to discovering what our unique creations are. It is more than okay to stand on the shoulders of giants, the masters that came before us and demonstrated their paths. Just know you won't replicate said path; your path is unique, because you are a different person.
Second, there is a difference between Jealousy and Envy, and I'm not sure I've seen anyone mention this. When people say 'use it to fuel you', they mean Envy.
Envy is a healthy emotion that says you want what someone has (skill let's say) and you are then motivated to work to cultivate that in your self and your life.
On the other hand, Jealousy says I see what that person has and I want it so* they can't have it*. Or I wish they didn't have it so I can feel better about myself. It's an emotion full of bad juju and it leaves one feeling small and miserable (no wonder it has the word lousy in it, cause that's what it makes you feel).
Envy lights a fire under you and raises you up, like a glorious hot air balloon, bouyant and colorful. There's plenty of room at the top, and each balloon is different.
Be mindful of this and really think on which emotion you want to follow in this situation.
On the topic of comparing yourself to others.
Consider this: would you compare one of your favorite foods to another? Hopefully not because each dish you love for different reasons. One is not 'better' than the other, there's no need for value judgement.
In the same way, the hypothetical reader can love a wide variety of "similar" work. In fact many people stick to genres they enjoy and find familiar and hope to find people who make similar things. Humans are creatures of habit and comfort after all. Most don't like to tread out of those comfort zones.
More than anything, I would advise you to look at what you love about these similar artists. Then instead of thinking 'Ill never be as good', ask yourself, 'what can I do, right now, that would take me one step closer to where I think they're at?'
Then as soon as possible, do that thing. Don't give yourself time to think cause your mind can and will sabotage you right now if you let it. You have to demonstrate to it actions that move you toward your goal to get your mind to, well, change your mind.
If you don't have a goal, make one. Make it specific and something you feel you can achieve but it's juuuust out of reach. Write it down. Write it anew every morning so it remains on your mind. And an important followup, write what you're willing to do to achieve the goal. (I do this before starting work every morning.)
Confidence is not a prerequisite to achievement. Past attempts and actions built confidence, that's inevitable.
Don't you feel good based on stuff you did well in the past? That's confidence, cause you know you can do it again.
But when you're still a small creator, there is a lot of uncertainty and a lot of unknown. That stuff is not in your hands, only your choices are. So choose what you want to do that feels emotionally best to you, not what other people's shoulds or should nots are.
The power is in your hands and is your responsibility.