I love brushing my teeth because i love them white and my mouth fresh. if you do it too much it can wear them down, right?

Right: Especially if you use a more abrasive toothpaste and\or have gum recession. Anything can be overdone. Soft toothbrush in circular motion and avoid drinking sports drinks high in acid content. Your dentist can help evaluate how you are doing regarding your oral hygiene regimen.

Tooth paste abrasion: Tooth paste is the culprit for tooth abrasion according to dr. Tom abrahamiam dds ms, who is a board certified prosthodontist. He suggest brush as often as you like, but use very little or no toothpaste. For the freshening effect sip a small about of mouth wash when you brush.

Be careful: Too much of a good thing can be harmful. Over brushing can cause tooth abrasion, especially where crowns and roots meet, and gum recession. Brush 2x/day for 2 full minutes by the clock. Brush gently, don't' scrub hard. Use pea-sized portion of toothpaste. Note that most adult decay and most gum disease starts between teeth where toothbrush can't reach--use floss or waterpik. See dentist.