So, since you don't mention it, I have to ask: Have you tried speech therapy? As for avoiding words, you seem to be aware of the pitfalls already, so I won't go over that, except to note that you should be careful with how much stress it puts on you. Also, don't think your stutter can hold you back from being someone. All it can do is make you sound a bit odd sometimes. Don't let that detract from your intention, motivation, direction and all that.