The unconfirmed amount will be credited to your account once the blocks mature.
But... I know you are just starting out, but I don't recommend you continue with Minergate. You will get low hashrates through their software, and though it looks slick, will be a waste of time. Probably the best starter/newbie miner software is Nicehash's tool. It will teach you a little bit about hashrates, different and profitable coins, and you will be earning a little bit so that you can continue reading and learning. Then when you are ready, there are a ton of options here in this forum. Anything from whole Operating Systems dedicated to mining or profit-switching, to specific mining programs for specific coins and more.
Thank you, I was facing the same issue as him and will explore Nicehash.