Is it bad I keep getting strep throat?

I think I've had strep throat about 4 or 5 times in the past 3 years, and my doctor said I should be getting my tonsils out. is it mandatory that I do? I think the reason I have it so often is because I take my medication wrong (ex: when I should be taking 3 pills a day, and on my last day there's only 2 pills left. Spooky.) I know for the first 3 times or so I was ignorant and had no idea I was supposed to finish the whole bottle, etcetc and so on. I've heard that it's bad to take out your tonsils? Something about them being important lymph nodes. Anyway, I'm just wondering if a tonsillectomy is urgent because I'm really worried about that.