Self indulgent insomniac ramblings

I went to bed before 11. Its now ten to 1, and as I'm no closer to sleep than I was an hour ago, in fact I feel more awake if anything, I thought I'd scribble some notes for a blog post.

So what's going on in my head at this hour? I have to admit that just now its mostly work-related. Not surprising I suppose, as its all still fairly new, but this new (part-time!!) job does seem to have taken over my entire life. I'm assuming the work-life balance bit will level out soon?

These past 4 weeks have been extremely stressful. Not necessarily in a bad way - I'm sure its the same for most people going into a new work environment. I just want so much for the newbie stage to be over. I still feel slightly nervous every time I go in, and I'm a bit sick of that.

Its true - I do 'worry too much', as I've often been told throughout my life. According to some I also 'think too much' (?) So what, exactly, am I worrying about:
Am I up to the job?
Am I going to get something spectacularly and ridiculously wrong?
Do my colleagues like me?
And seemingly the biggest one:
Do they think I'm stupid?

This last one is a concern that plagues me in most situations. I know I'm not stupid, but I'm acutely aware that I'm really not very articulate, verbally anyway. And I think that I can easily come across as a bit thick because of my lack of repartee.
I wish this didn't bother me so much, and that I could say "I don't care what people think of me!" and mean it - but it does matter to me, especially when its people I'm dealing with on a daily basis.

I have literally no idea what other people make of me, I find it very difficult to read people in that way. All I have to go on is my own self image, which is not very healthy or kind, so thats a bit depressing.
At work I've been making a huge effort to be more friendly and smile more, but then I wonder if I just look like a big grinning idiot!?
Sometimes I long to know how others see me, but what if its even worse than I imagine? maybe I'm better off in ignorance.
I could drive myself mad with all this stuff.

So. I have developed a plan of action (of sorts). I have made the decision to go ahead and join the local gym. I think I can just about afford that luxury for myself. And I will seriously throw myself back into a proper training regime. I would love to get back to some running too, but will see how it goes on the treadmill for a while, taking it very slowly. I still don't trust these shins.
I know I feel better about myself when I feel fitter and stronger. Also, I'll be better equipped to beat up anyone who says I'm stupid.