I bought lots of bitcoins when BTC was at 2K$/BTC...
If I didn't spend most of them I could now be RICH! (or even millonaire)
Don't act like me and try to keep the invests as long as possible, I could have earned LOTS of $ but I earned about 500$ instead.
I can't be angry with myself as I didn't lose anything, but I didn't earn as much as I could have earned.
You do realise if no one was spending and everyone was sitting on their coins, bitcoin would be worth zero and only few guys would know about it? If not for you (and others) who were actively using bitcoins, it wouldn't get to where it is right now.
And if you've spent most of it, then it clearly wasn't a long term investment for you. So it's just another case of "would've, should've, could've". There isn't a single person who didn't miss out on great opportunities to get filthy rich. Whenever you bring a subject of Bitcoin in public, there's always at least 1 guy with "Maaan, I was so close to buying bitcoins in 2010 but I didn't, I would be billionaire today" story.
Don't beat yourself up over this, life goes on.
I don't think so if many people are holding there Bitcoin then the process of increasing the price of it is happening as no one is budging to sell there Bitcoin at that price level. But everytime there is a price increase you know that someone will be willing to take the offer when the price is right. That is how trading works if the supply is being hold by the owners of the crypto eventually many buyers don't have any choice but to increase there offer to make it more attractive to the sellers.