Thank you for taking the time to read my post and reply.
When I trade FOREX, I can Buy or Sell, at the Market, and then end the trade whenever I want.
For example, let's say I Buy at $10. It increases to $10.5, $11.0, etc. I can get out of the trade whenever I want to. I don't want to get out of the trade because I believe the price will keep going up and up.
Is this possible when I buy Bitcoin in Coinbase?
Cryptocurrency exchanges operate differently than forex markets and exchanges I believe, I don't know much about forex since I've never traded forex, but I can tell you about cryptocurrency exchanges. When you buy a coin at a certain price, you can always place a sell order above the market price if you want to sell it at a certain price, if the price goes up and hits that target, your coins will be sold. You can do the same for buying as well.
If you buy a coin at $10, and then it's price increases to $10.5, you will have to manually place a sell order to sell it and you can't just do it with your previous buy order because that is not how spot market works, you will set your target price and sell it at that price manually.