First, Ensure that the coins I'm holding are not shit coins to be. The way is at least to pick the top coins (Of course, Bitcoin is my first pick, more than others).
Then, move them into non-custodial wallet.

Set the target that I'm going to reach for the price of coins that I'm holding. each coin commonly has its own targeted price, so I'd like to check it when in bullrun whether it is rising up or dead. I'm also setting the target of time period, whether I'm going to invest or hold for very long time or for certain period (bearish - bullish).

Then, sometimes, check the market condition. It will of course go up and go down, but what to remember, never panic whatever the condition before the target is reached. Panic selling or buying will only harm our hodling.

Anyway, doing more accumulations to add more coins is also suggestable to do.