1. Long term - My time horizon is sth like 1-2 years for each trade
2. Use both technical and fundamental analysis
3. Buy only usable coins/stocks
4. Buy assets which gives dividends
5. Don't listen "experts" and "analitics"
This is really useful strategies and I really appreciate few points where you have mention that we should invest only in useable coin, I means be very careful while choosing a coin for trading, after that making good analization is the most important to we can know when to buy and when to trade, holding is the most important which I personally believe in long term holding only.