I can’t keep a job to save my life

I don’t think I’ll be able to have a traditional 9-5, it’s just not working out for me. I can’t keep a job for no longer than a year and it’s kinda sucks because I do try at least but my mental health issues gets in a way and I have a horrible work ethic. I want to try to see if I can use my talent in writing music as a way to make some money for the meantime right now since I just got let go from this hvac helper position, I’ve been learning from a professional for a couple days now and they have been watching how I’ve been doing, he has been foreshadowing letting me go indirectly because I’m not learning at a fast pace and I just don’t know the basics yet so it will be very hard for him to keep teaching me over and over again. I don’t know if I should try seeking an another career path since this one doesn’t seem it would be for me.