you should do self defence, specially for girls but kickboxing and boxing is for men as you need power and strong bones and unless your a hulky women its not ideal itl just look good and sound good like "im a kickboxer grrrrrr"..then again boxing has thee best workout routines ever, youl have a 10/10 body (if you havnt already lol) but try things like Krav maga, Russian systemma, Ninjitsu..ther really cool and ideal for any situation

you dont need to pay monthly just buy a boxing bag and some gloves and wack the crap out ov it from day to day lol..iv been boxing since about 10 years old, had a good amature career and then i stopped for a while cuz of school n stuff and just did it part time until recently i turned semi pro (after much persuation) but for me its still for fun.