I do not know how old you are, but when I was 16-22 I put a lot of my life into being a fighter and martial artist. I didn't make the leap from amateur to professional after going 6-1 in MMA and doing pretty well as an amateur boxer too, I let life get in the way and then time....
I have some questions for you in further detail, many of which
@Cole train brought up. How old are you? What do you want from life? where are you in your career as a fighter, athlete and martial artist? Where do you want it to go?
When I was training and fighting, to me my career and life was that of a martial artist and a combat athlete. So I took jobs that best facilitated that (which with Covid-19 things are a little different right now but the premise still stands). I'd bounce at night clubs, do overnight security and work as a server for restaurants and I'd also coach at gyms and do corner work. Being a bouncer and server in general meant I had all day to train as I worked evenings, relatively good pay and short hours so I didn't have to sacrifice much sleep and could finagle some amount of a social, personal and sex life. Also hustling up sponsors helped a little too, when I could.
If you want to go beyond just being a regional level pro fighter, there's some realities you're going to have to accept. Your life will require a certain amount of selfishness and much more travel than a normal persons. You will need to make every right decision for yourself...Until you've made it far enough, coaches, gyms and management only do so much for you. You need to be your own nutritionist, you need to cross train at other gyms and disciplines, you need to hold yourself accountable for having tip top cardio and strength and conditioning beyond what you get from your gym. You should network and brand yourself, it helps with sponsors, training, opportunities, finding fights etc. Find and surround yourself with all the best people for your career and growth as a fighter. Be a student of all facets, a sponge, obsessed and certain.
Depending on where you live, you may need to relocate at some point to a gym that's equipped for pro fighters, and successful ones at that, with the right coaches, training partners and facilities for you personally. This may mean uprooting yourself and moving your whole life, a lot of guys really fell short for not being willing or not thinking it necessary to do this. Good habits take you far though, a clean nutritious diet, a good living environment, proper supplementation, rigorous stretching routines, mitigating distractions, good time management, prioritizing adequate sleep, being financially responsible and staying disciplined year round. Balance is important too though, the furthering of your education or knowledge (be it autodidactically or traditionally), exploring interests and new experiences, forming and growing friendships and relationships, traveling...seeing and experiencing the world. You do not stop being a person just like you do not stop being a martial artist.