The starting point in the domain game is the worst place to be, to be honest. Wouldn't want to go back in time and start it all over again. Eventually, I wouldn't touch domains if I knew...
It takes much time, money and determination to get somewhere. And I know what I am talking about. Also super easy to f* up, specially for net newcomers.
Starting with just handful of domains, I wasn't able do it full-time, yet I haven't had the money to buy assets I could flip. So I started acquiring domains at a pace (3-5 a week, while getting also rid of some for low prices). 50 domains, 100 domains, it still wasn't enough. The break point happened for me at 350-400 domains, 5 years from when I started. Just from there I was able to make living off domains alone. So I had 3-5 inbound inquiries hitting my inbox basically every single week.
Apparently, the numbers here are completely meaningless. Also, I am talking ccTLD. So it might be 1000 of slightly worst average quality domains or maybe 100 of higher quality domains... All I wanted to say is, that you either need to spend money and/or time to get there. If you break mentally or financially on your way there, it's not gonna happen. If you feel you're slipping - not enough sales, finances drying up... you better work your ass off to keep on track. Outbound, development, alternative monetization, whatever is possible.
So focus, determination and financial management is everything in this game. If you lost your focus, take a break, check if your domains are all renewed for at least one month and do not touch em for at least two weeks. Don't even think about it.
You'll see.