You sound knowledgeable enough to ask so...
when you first started did you have difficulty adapting?
I just started Muay Thai 4 months ago and i'm having trouble with balance and center.
Keep in mind I have only had 21 lessons and practice mostly alone.
any suggestions would be appreciated man.
bot... Machida is such a clean fighter. I love how effortless and smooth he is
http://www.dailymotion.com/video/xhta2_rich-franklin-vs-lyoto-machida_extreme
I can't really make any specific comparisons between Muay Thai and Aikido, because they're almost polar opposites on the martial arts spectrum and also because I've never practiced Muay Thai. However, I think the first few months of any martial art will always be the hardest, especially if you've never done anything like it before.
When I first started doing Aikido, my only previous experience was in high school wrestling, so there were a few biases that I had to overcome. First of all, wrestling is mostly about overpowering your opponent and there is a lot of struggling for a dominant position. In Aikido, there shouldn't be any struggling and you should never try to overpower anything. Rather, you either encourage your opponent to generate their own force so you can exploit their momentum, or you move around their force and take advantage of a weak area (such as a pressure point, or a joint manipulation). Fortunately, I wasn't a particularly good wrestler, so it was fairly easy to "forget" it
Aikido is a very "balanced" art though and the founder went to great lengths to minimize the effort needed to perform any technique. There are no exotic forms or superfluous movements and it's based around the idea of maximum efficiency with minimum effort. That's not to say that every practitioner is perfectly balanced, but establishing balance in Aikido is probably easier than in most arts simply because the founder had the foresight to exclude the more dangerous and unsteady techniques from the curriculum.
Anyway, as far as adaptation goes, while most new people are able to perform the techniques superficially, they do still have trouble getting used to the subtleties of each technique and, while they're not falling down all over the place, they do generally put themselves into positions that would allow them to be overtaken by a more experienced fighter.
I'm not familiar with the Muay Thai curriculum at all, but I'm guessing that these subtleties are what you're talking about. Without knowing exactly though, I really can't give you any good suggestions, so my only advice would be to continue your practice with a qualified instructor and senior students.