11 years hold is a long time, at 1 cent and now around $34k is an amazing thing, I bet it only happens to 1 in 1 million people, first time I bought btc in 2015 for $210 and held almost a year ago selling for $450.
At least in your case, you got $450 per coin when you sold them. For me, I received just around $220 per coin, when I sold a part of my stash in 2015. I don't have much regret, because I had purchased the coins in 2012, for an average price of $10 per coin. And also, there is no point in holding on to all of your coins. Because you need to sell them at some point and also the new investors may find the prices too unaffordable if no one sells them. In my case, I sold them when the prices were very low. I would have been in a very good position if I held on to all those coins.. but whatever happened just happened and we need to move on.