Ok so I'm going to guess you're pretty young, so we're going to do some groundwork:
1) welcome to the internet. Some people are nice, some people are a-holes. You cannot change that and trying to control what people say will make it worse.
2) You are free to post what you like on the internet, provided it follows the rules of wherever you're posting to. Like the same way you have some different rules for home or school, different websites have different rules you have to follow.
One of the rules for the tapas forums, for example, is if you want to link people to your work or talk about your work with the intention of getting people to see it, it has to be on topic and in a "promotion thread". You are free to advertise your stuff there, in fact, it's encouraged.
3) you can post what you like, but posting is not a guarantee people will pay attention to it, like it, or agree with you. They're allowed to do that, just as you don't have to like everything you see. If this is unacceptable to you, you are not mentally ready to be on the internet yet, and you will get needlessly hurt.
4) understand that by default no one cares. If you're lucky, in your real life you are surrounded by people who love you and care for your wellbeing (friends, family, teachers, etc). That is not the case on the internet, you are but a speck of dust out of 4-5 billion. You have to give people a reason to care, be it by being kind, clever, talented, interesting, endearing, etc... And you'll have to prove that you are those things, you can't just say it and have people believe you.
Right now no one knows you, no one knows if you're a good writer, artist, friend... No one has a reason to care, and being really antagonistic and self-centered isn't helping.
5) the internet might not be for you yet. If you're already getting bogged down in the numbers and likes before you even post much, the algorithm's going to do a number on your brain chemistry. When starting to create stuff you need support and help, and that's a lot easier and safer to get from your real live people than faceless strangers. If you're more focussed on the numbers than the joy of making stuff, you need to take away the numbers. I'm not telling you to stop making what you're making or to delete your accoknt, but it's be better to share them with a few friends and your family than randos, at least for now.
6) I say all of this as friendly advice, from someone who grew up with the internet with no adults to guide me. I understand that it might seem harsh, but these are all important things to think about when on the internet (as well as your general internet safety). If any of these points are something you can't deal with, come back in a couple of years, your mental health will be better for it.
