By spending bitcoin on things, you help the adoption of bitcoin and make it more recognizable. If you hold bitcoin, you can make a profit from it.
I personally choose to hold my bitcoin long-term, it's been in my ownr wallet for like 2 years now. #diamondhands
I'm not thinking about not touching bitcoins, which means I still have very high chance of spending them on variety of things. If one morning I make lot of profit on this investment, then I might consider selling some or all of it. As some have said, you should enjoy your life instead of having to hold on your investment assets forever untouched. Hold now and sell later, that's fine.