If you're in profit you cant really go wrong.. the easiest thing to do however is focus on your entry more than your exit..all I hear anyone talk about is when to sell.. worry more about "when to buy"... buying when something is heavily retraced has a much higher chance of getting to great returns over something going into unexplored highs..hence bitcoin is much likelier to make it from 6k to 12k than it is from 12k to 24k.. and certainly much more likely than 20-40k or 40-80k... anyways you get my point... the better the buy in price, the lower the risk.. and going into profit quicker means position trading becomes alot easier...

Lets say for example you buy TRX (Tron) at 400 sats.. if it goes to 600 sats and you feel like that is the top then you can sell most of it.. if the market continues going up and leaves you.. who cares? You can then sell your other stack.. if it goes back to 400.. even better.. now buy 50% more with the stack you just sold.

You really can't lose being emotionally unattached to coins and selling them in profit.. if you worry about the coin going to the moon later, then keep your profits you made from the trade as free coins and just break even back to BTC if thats a strategy you would like to follow.

I never think its too late or too early to start trading.. as long as your disciplined and don't fomo into your buy position.. and are in profit in your sell position...theres almost nothing in trading thats important besides common sense.. TA may min/max your entry exits a bit better.. but most of trading is really being less emotional and less greedy or less scared than the traders standing around you.