To hold BTC for the long-term you actually don't need any technical analysis. This is, as long as you're confident in the market based on your vast amount of reading (and not because your friend said so) then what you need to decide is which exchange you're going to buy from and where you're going to hold that bought BTC.

The choice for an exchange would mean that you understand different exchanges charge different fees, and what earning in for of APY rewards these exchanges give you for storing your crypto in their online wallet. You could also consider holding your BTC on a hardware wallet like ledger but just you won't be earning if you was to hold it on an exchange.