question to marijuana smokers and or doctors!?

ive never smoked maryjane in my life but recently ive developed a very bad social phobia i dread going to social parties things like that i cant even have a normal conversation with my dad my mom wont get me pills for it because she thinks im faking it while getting a check up my doctor talked to me about this and he recommended taking small hits from a joint he said it would greatly relax me and help loosen up..should i start smoking it a little bit?is it addictive?how bad is it for you?will it really help me relax? thanks for help!