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".
When the value of bitcoin went over $20,000 USD, you didn't invest because you thought it might crash soon or right away. Now you are regretting. The price is at around $39,000 USD, you think it might crash, so you are hesitating to invest. When it doesn't crash, you will start regretting once again.
No one knows if the price is going to crash or not. It is useless asking people if "YOU" should invest or not because they no nothing about you. You know yourself better. You know your financial condition. Thus, its you who can make the ultimate decision.
If you are willing to hold for long term (like 2/3 years) then go ahead invest. If you are willing to make some quick profit, then I would say no if you can't afford the loss.
I think we've all been in the same position with OP. I have myself been in his shoes. There's no point in looking back, I had abandoned my wallets after the crash in from $20k back in 2017, hadn't logged in on my wallet since then. When I did, My balance was tripled ($24.000 then) and I still didn't bother to keep track of how the market was going. After a day or two it crashed down to $17.000 and my account on Bitstamp was inactive and was locked out.
In result, I didn't manage to buy at the right price. It has happened to all of us.