Should I invest money with the suggestion of that guy? He told me that if I invest I will get good profit. He said, he will open my bitcoin wallet and help to buy bitcoins. Should I invest in bitcoin?
Many people get scammed because of trusting strangers and based on your story, that was not far from happening.
@OP, you better stay with that guy and ask no help from him. You may appreciate how he helps you now but be careful, the next thing that may happen will be your nightmare.
There are a lot of tutorials about how to create a wallet address, you can make your own rather than letting someone (strangers) do it. Had to think that NOBODY should know your keys/password aside from you or else, the safety of your wallet be compromised.