You have no business studying Aikido. This art is only for people who are already superior persons and can defend themselves in all situations. What makes you believe you have any place studying Aikido? Of course you must not be allowed to study it, but if you somehow get in the door, you must never train more than twice a week. And if they let you train more frequently, you should never be allowed to actually take falls for any advanced teachers.
Hey, some people need a challenge in life. Consider it made.
Wade in and try it out. The reason you start isn't as important as why you stay after the first year or two.
Be patient, this is a VERY difficult art. Not hard, or complicated, but difficult. Good luck, have fun, make friends, laugh, sweat, get frustrated.