Hello, I'm new here and also new in the cryptocurrency world.

I already bought some coins and got 5% to 15% gain in some of these coins.

My question is, what is your accepted gain/loss % before selling the coin? If you get 5% should you sell it or just wait for it to continue growing?

The question comes because I did not put a lot of money on that, thus I think that I need to buy/sell more frequently to increase my cashflow. Does it make sense?

I would probably hold to some altcoins for the long term when I have more cash to play with.

Thanks!