Reading things like this make me glad I don't work in this sort of environment...
Anyways, at this point you don't seems to be comfortable in the clothes your in. If you can't be comfortable in life you're missing out on one of life's real pleasures (even when working). Ties can be comfortable, but your attitude needs to coincide with wearing them or you'll fail and people will see through the facade.
So, you've already started wearing them on and off, make a little experiment and see how your environment reacts...
Go the 1st half of the week with a tie and the 2nd half without. Take mental notes of how your co-workers/ boss respond subtly through interactions. Then, go the 1st half of the 2nd week without the tie and the 2nd portion with it (reverse 1st week). Again, take mental notes.
By this point you should have a clear enough idea how wearing ties affects interactions within your office at both the beginning and ends of the week. If both portions, fail maybe wear 1x a week. If it doesn't matter maybe wear on and off as you please.
Ultimately, its not the time tie that will make you get along with your co-workers it's your attitude. I consider myself an introvert too, but I clarify as calling myself a 'social' introvert
in the fact that I keep my public day-to-day light and sociable. Then use my free-time outside of the workplace to indulge things that are enjoyable to myself. People still don't charge me up, but I realize I'd be a lonely, loser if all I did was keep to myself. I just try to balance me
time with face
time. Even though I may be most energized with me
Don't feel negative about your personality type, as the undertones in your post hinted.. Instead, learn how to adapt (improve) to better fit a real world environment. This may take practice, but you'll probably find it rewarding long-term. You can start by playing minor games/ experiments with your day-to-day interactions to see what works.