does it feel right? does it feel like yourself? does it feel like you would be motivated to do more for it? does it feel like you could shine there? listen to your intuition!
What if I'm not motivated anymore to do the work? It is the right time to quit?
if you feel like it doesn't fit you, you should quit. but try to determine what you want to do next, be smart in terms of being safe financially maybe not quit right away. If you have lack of Energy maybe talk to a psychiatrist or psychologist more about it. But definitely if it does not motivate you, you should quit.
I quit because I'm afraid if I cannot do the task well, I know money is important but how about my health issues?