I even have tried mass but it was full of old people and nobody my age (21) so never returned could I please have some advice on how to grow as a catholic and ways I could implement Catholicism into my life more.
You simply can’t be a Catholic without regular Mass attendance. Whether it’s full of old people, full of young people, or nobody there but you, the priest and Jesus, it’s the major prayer and activity of the Church.
Many of us don’t regard Mass as a social gathering but rather a place to join with Jesus and participate in His sacrifice and, if we are in the state of grace to receive Him in Communion, become one with him.
I’m sorry you live in an area where there are no people your age at Mass. Here in USA, I live in an area where there are people of all ages at Mass on a regular basis. However, like I said even if there was nobody at Mass but you and the priest, you still need to go, at a minimum every Sunday and some of us go much more often than that because we want to be with Jesus. Note, i said “want to be with Jesus”, not “have the social hour with the other people at Mass”. I am friendly to them, but they are not the reason I am there. I have frequently been to Masses where most of the people attending might not even speak English. Doesn’t matter, I’m not there to have a chat with them.
If you “converted” to Catholicism you should have been through some sort of formal Catholic teaching that would explain all this to you and also explain your Mass obligations so you wouldn’t be saying “oh I tried Mass” like it’s just some optional thing. If you have not been through this formal training, please ask a priest about it as it is necessary for a full conversion. You don’t just decide “hey I’m a Catholic” and start showing up. You need to be formally trained and admitted to the sacraments.
God bless and good luck.