I know it's not only mine but story of most of us who didn't invest into bitcoin once it crossed $20k mark assuming it would go through correction phase but it has gained almost 100% more since that time and I am not sure if it's worth risking to invest into bitcoin when it's nearing $40k?
Please share your opinion without any generic response like "there is no good or bad time to invest into bitcoin".
Quite honestly you are in a bad position, if you did not invested in bitcoin at the 20k level expecting for a correction in the price now that the price is twice than that then the chances of a correction have done nothing but to go up, so the most important thing is what it is your strategy telling you? If it is telling you to buy then do so but if it is telling you to wait then you need to do that as well as you do not want to invest out of FOMO and get trapped like the people that bought at 20k in 2017.