I'm sorry, but this is not good advice and I have to say something as a professional and a part-time creator whose comic actually makes money. it's irresponsible and, if people depend on you, selfish to do this. I see people who do this and then ask for donations every month to make household costs, and it pisses me off, because why is their passion so much more important than everyone else's that other people should pay for it? If you're not able to make work that earns money, because it's not high enough quality, or it's not appealing to the market, you need to earn enough money to be your own benefactor, it's as simple as that.
You should NOT work on your comic full time if it doesn't make you money unless you are somebody who is already very wealthy (like a multi-millionaire) or otherwise lucky enough to be in a position where they don't need to work to contribute towards household expenditure (but if the reason is "you're a kid" or "you're a student on a grant", you shouldn't be neglecting your studies and qualifications!)
Being responsible and ensuring you and anyone who depends on you is comfortable and safe should always, ALWAYS come first. You should make your comic in the time you have outside of however much time earning enough to have a comfortable life or pay your share costs. That might be evenings for some people, or weekends, or a few days a week. If you can't make your comic to a decent level of quality in this time, you'll need to either get faster at making pages, or find shortcuts that allow you to make pages faster.
Everyone I know who has 10k-50k subs has a part-time job, or spends equivalent hours to one doing paid commissions. Their comics make them a part-time income. If you want to make a comic that earns you a full income, you're looking to have a following of 50k+, ideally 100k subs, plus a Patreon on top, probably selling physical books too and regularly going to events to sell them and merch.
You should only consider making your comic your full time job if you're doing the numbers one day and realise the per-month or per-day amount your comic makes eclipses the amount your part-time job makes and could potentially pay your rent, bills and household costs on its own, and see genuine opportunity to increase that earning by spending more hours on it because there's demand for more merch, more updates, partnerships etc. If your comic does not make this sort of income, then no, it shouldn't be your full-time job and you're not ready for it and need to practice, study and research more if you want to reach that goal.
