I wouldn't think it would be the bulb...you are supposed to be very careful when you install them not to touch them by your fingers or anything else...cuz oils and greases get on there and heat up and can cause them to blow...MAYBE that's it?
Like sbocaj55 said, this tends to be a common problem. Also try to change out the fuse for your high and low beams. Could have a bad fuse that refuses to just blow!
I guess this confuses me, i know not to touch the bulb with bare hands, but i dont understand how a fuse is the problem, you never replace a fuse with a larger one, and if it blows out the doesnt fix my problem, the bulb blows, i know the weakest link in an electrical circuit blows, and a 10 or 15 amp fuse should be the weakest part. Could i just be buying to cheap of bulbs? The last ones were street glow from best buy. Should i just go and get normal wattage ones? Im not all that concerned on what they look like as long as both are going to work for 6 months plus, it just sucks to change bulbs out every 2-3 months