I regret a lot when i did not believe in bitcoin way back 2015 when bitcoin price was just about $200 , I feel like that the opportunity that was given to me was wasted , so right now I am holding some of my coins and let's see if I'm gonna have second chance.
Don't worry about it. Collect as much coins as you can and hold on to them patiently until the prices increase by 20x or 100x. The exchange rates are going to increase, sooner or later. Because the number of users are increasing every month (despite clones such as Bitcoin Cash and Bitcoin Gold leaching away significant numbers of them).
Yes I also fell regret that why I did not join bitcoin before because I remember that my friends they insist me to join bitcoin but I dont listen them and now they have too much money some of them are investors and some of them are doing daily trade here so I think bitcoin is such a currency which need to join as soon as possible.