I tell people this all the time when they say they want to be wannabe writers. This bears repeating until the sun implodes. Stop sabotaging yourself when you haven't even seen the success you can have because you've got those negative thoughts in your brainpan telling you "You won't be successful." Self sabotage is something we humans do all the time and it's rough, it really is! But learning to have confidence in something you love, whether you're good at it or not, is an amazing thing to have.