Hello,
i don't know bitcoin very well but i have money in btc on coinbase. I am not sure have money on coinbase is very secure. What do you think about it ? Is there a way for have bitcoin with security because i scared coinbase block my account or give information on how much money i have on it, i think it is not very anonymous
You are not safe with that exchange because there are so many claims of having issue to that Coinbase site.
Try to have your own Ledger nano to keep safe your bitcoin and be secured holding that coins of yours.
And please prevent your self from leaving your crypto assets in any exchange because that is not reliable way of investing.