Hi, my name is Loreto, i'm from Chile (i speak spanish so i apologize for my ortography faults

)
well, i'm 20 and i want to begin to learn Muay Thai (there is a gym a few blocks from my house)
but i'm a bit concerned because:
1- i'm not in the best shape
2- i know that is a though sport but i don't wanna be massacrated lol
so i wanted to ask for your opinions ... i'm really insterest in muay thai, basically because i want to improve my fitness level,learn how to defend myself and it looks really fun too, but i don't know... do guys have any problem with train with girls? its better to begin with some other sport for a few weeks and then go with muay thai?
Thxs for your help =)