As a 5 years of experience i tried every method for waiting optimal profit. Waiting just with a hold of any coin is not very good at short and mid-term time intervals. Generally holders wait for historical rise but it comes in 3-4 years or maybe more. So even if you wait for that rise you can gain something on short and mid-term time. Basically i assume you have some coin just sell some of them on a small rise period, price is moving with 6k-8k for a few month so when you see 7-8k prices start to sell dont sell all but some of them should be great. Even if it rises after you sell you are now waiting it to fall , and short time period it always falls just wait 1-2 months low and buy even if it drops more you basically gained profit. So if you can read some trend moves you can invest mid-term so you dont have to hold for years. If price starts to rise historically then it is time to buy.
This maybe applicable for those expert in trading. But with the complicity of the process, newcomers may think of it the hard way. For me, there is no bad or good move in holding as long as you just invest only the amount that does not comprehend your daily expenses.
There's no need for expertise here, and for me the most important thing here was your funds. Maybe we find it more advantage to those who had experiences, but I don't think so if we don't have enough capital to do so could probably let us move further on our desires towards trading. Most traders doesn't keep that fiat if they wanted to, because every opportunity is valuable so they tend to use that funds for definite purposes on investments as well.