I think I'm confusing you. I got $1000 from my bank account and put into bitcoin using coinbase pro. Now I want to put in whatever is leftover to own a whole bitcoin not just $1000 worth.
Then deposit it again on coinbase to buy the current price of bitcoin and I've got a warning to you.
Avoid people that will offer you to 'multiply' that amount you've got to obtain 1 bitcoin. Because of the desire you have right now to make it at least 1 bitcoin, you might be greedy and listen to them.
Avoid those strangers that might come to you.
I do agree, this is the best choice, if OP does not have any experience to trading to at least increase his bitcoin holdings by buying bitcoin in a natural way is the best choice to collect a whole bitcoin that he wanted.
Yes, avoid scam and do not listen to making money in an instant or anything like this to prevent from losing all your funds.