If you try and hodl, and also do trading at the same time, you will lose in the long run. You have to choose one or the other. If you choose to hold longterm, you have to avoid cryptocurrency news and try to avoid reading charts or watching the latest market trends. Watching the prices go up and down will kill any amount of patience you might have, even if you have a lot of it.
I would disagree you can do both if you put 50%/50% into each one then its fine. you have the held amount which you will revisit in a few years or at your desires price. and trading will be more of a short term income which won't be as much but will be a steady income.