2 Guys 1 Girl...Which one should i choose???

I have a relationship with a guy for a year.He is really nice to me but our life is boring.We live together and its a routine not to mention about our sex life..I met a guy who is really nice and waits for me.He is kind with me and really funny.What should i do? My family and his want us to get engaged but im only 21...HELP