Do it. Your post sounds like me when I started. I have completed two MS degrees while working full time, and it is well known that I am neither brilliant nor

Do it. Your post sounds like me when I started. I have completed two MS degrees while working full time, and it is well known that I am neither brilliant nor a workaholic. I started as a non-degree student but promptly switched over after a class or two. By then the professors knew me and there was no issue getting admitted. Some classes will be better than others but all provide great mental stimulation that I find lacking in the corporate world. Even now, after taking several MOOC classes, I am contemplating a 3rd MS. PS: I wish I could do the PhD but part time programs are hard to come by. Also, it is much easier to get your employer to contribute towards your MS than a PhD.