My legs are so sensitive and i've tried everything! help!?

whenever i shave, my legs go red and they irritate me. i have tried shaving in cold water, hot water, warm water, i have tried almost every shaver out there, almost every shaving gel, i have used conditioner, i have waxed, and nothing works! i drink a tone of water every day, and they still look and feel horrible! i have a boyfriend now and im so worried to take my trousers of, and wear shorts in public. HELP!