People often confuse investing and trading!
Everything is easier if you need make a deal with yourself. For investments, you choose assets, outline your personal areas of interest! Zones are not a specific price
You accumulate every time the price reaches your zone of interest, not just some blogger or your friend, but precisely in your buyers zone! Make an entry plan and outline your areas of interest for exiting the asset! 
The most conservative strategy that I constantly repeat is that at x2 you take the initial deposit and leave free coins without risk! Next, you outline the exit area! This could be a zone for exiting 100% of an asset or exiting gradually by percentage! When you enter or exit an asset, you should have absolutely no emotions! Reading the first rule, you need to initially agree with yourself! In investments, everyone, absolutely everyone, even the most famous investors, hedge funds, venture funds, etc. can be in drawdown for some time! This is fine! Investment is a marathon and a long-term game! Therefore, do not confuse it with trading!
For investments, you allocate a separate portfolio and a sum of money! You have a separate amount of money allocated for trading!
Let me give you an example from my $ALGO ! You know, my investment entry point is 0.20, that is, I agreed with myself that for me this is a normal acceptable entry point! I allocate % to this asset for investment for a long period! Exit zones from the asset are immediately outlined! If the price goes much lower, I just wait! Absolutely no emotions, no stress, because I know what I’m doing! Any asset, absolutely any asset in the cryptocurrency market can go to zero, you must understand this and accept the risks! As the price moves lower, I have the opportunity to expand my position and build a better average entry point! Or I can do nothing, since I can use the free money to acquire other assets at lower prices that are interesting to me! That's what I did with Algo! My point remains 0.20 for the algorithm! But in return I scored a good position on IMX, $ASTR ,  instead of averaging the position on Algorand! I hope you get the point! 
The main thing is that every purchase occurs in my area of interest and I have no emotions! Using the example with $EGLD , I did not buy the asset, but in the video 4 months ago I showed the points and zones of interest! The asset has grown by 160% and now you have the opportunity to take profits or wait further! Therefore, you should not get depressed if you purchased an asset and it remains in the red for some time! Do not confuse an investment account with a trading account! Don’t fall into fomo if you took a profit based on your strategy and the asset continued to grow! Always negotiate with yourself. Never listen trols around you who laughing when you bought coin and now in losses! Trolss can only troll. The main goal is follow your plan!