What is an acceptable risk-free potential in crypto?

With some experience and a few months learning, between 70% and 120% per month is very acceptable.

And the most interesting thing about these markets is that compound interest can be used up to daily, because you will always have more capital and with each operation you can increase your profits.

It is always a good idea not to have everything in one trade or one strategy. It is good to know many strategies and learn to use the tools you have, bots, futures, hold, earn, options.

And always diversify, even operating in other markets and my personal recommendation is that you redistribute a part of your profits every month, in the stock market or in fixed income.