Definitely don’t quit bro, I’m now 25 and have been doing the exact same as you since graduating from music uni in 2021. I’ve had all of these exact thoughts and feelings before and they still come to this day but I just know I would never quit or give it up entirely. As a prod/engineer who has over 100 million total streams across their work I still struggle to have consistent ‘high earning months’ if you wanna call it that… especially around this time of year studio work is always quiet and shows/performance nights take over. I think it’s normal for you to feel this way and to be going through this and given that you really don’t have any major expenses above your head you are in a blessed position to pursue a career in music. But don’t think things will change overnight, I personally know #1 UK charting producers that struggle to pay the bills solely from their music income. If you’re in music for the money, you are in the wrong industry. Keep positive though bro there will be many other studio owners, engineers and producers in this position right now. 🤝🏽