My long term investment plan is quite simple. I have set a budget every month and selected a few cryptocurrencies I like, I will buy in the month the one the have gone down the most since last month. So far it is working quite well on this almost 1 year old bear market, I have a lot of coins that I like and I feel very comfortable buying and holding them for the long term, Steem being one of my favourites but started going down recently, so far it has been very stable