I am new to bitcoin and my friend who uses bitcoins told me that it is better for new people to mine other coins what coins are best for new people and what coins are easiest to mine
Forget about easiest to mine and go for most profitable to mine. Then sell whatever your mining for bitcoin and hold your bitcoin.
I think right now you want to be mining Ethereum. But don't take my word for it since I haven't used GPUs to mine now for a while.