Need Help Getting Clients

Hi peeps! I’ve posted in here before (I believe), I’ve owned and operated a very small digital marketing/management agency called Lee’s Media for the last 3-4 years, I’ve had a few on and off clients, but have never really had any long term clients if you will, it started out with just family and some friends, and started branching out to get more clients. I used to offer three service plans, basic, advanced, and platinum, but have since decided to scale it back to only basic as the other two were just sitting idle and not earning money for me, so now I only have the basic package which includes post creation, engagement with followers, and appointment bookings through the system that they use. It comes at a price of $450/month. I’ve recently redone my website (opinions appreciated) but am struggling big time on getting clients. This business was not my first business or idea, I’ve tried multiple businesses in the past, I’ve gone to school for a career that didn’t pan out. I have a physical disability that greatly limits the jobs I can have and do, I need and want this business to work, to help me pay my bills and to continue to grow into more of a successful business. I’ve been in the hole so many times, I now have PTSD from it and want to get as far away from $0 as possible, my current marketing strategy is simply cold DMs through Facebook and wherever else I can find them, I try to send about twenty a day, and typically get the “no”, “stop”, or the famous “I’ll think about it” and when I follow up I never hear back from anyone. I used to offer web development and only had one solid potential client that chose to go somewhere else because I had just started, I undervalued myself, and wasn’t confident in what I could do. I cannot run Facebook ads so that’s unfortunately out of the picture. Guys, I need your help. I’ve applied to hundredsssssss of jobs to try to help me stay afloat and above $0 but have heard back from absolutely nobody. Idk what to do. In no way shape or form am I quitting, I can’t lose if I keep at it. I’ve had to endure a lot in my life so I don’t have an ounce of quit in me. What do I do? I need help! Thanks! Advice, tips, whatever y’all got is so appreciated!