I suppose it is too late for solo mining isn't it?
How does this pool mining with 3% fees works? I always distrust website where they do not state when do they pay...
Not too late, the difficulty drops quickly when no blocks are being mined, you just have to crack 1 block, and it will go right down.
Alternatively, just make a unomp. If you have no experience, this an okay guide, although a bit dated (miss out the windows bit if you are linux), plus fund it with a few coins when you can so it can pay tx fees.
https://blockgen.net/setup-your-own-mining-pool/Like I said, it is a bit dated, but it still works.
Remember
staking=0
in the .conf