The "abit" is similar to the alot, a mythical creature invented by Allie Brosh in the blog "Hyperbole and a Half". The abit, however, is more common these days and is mentioned frequently amongst the generally ignorent. The abit is extremely cute - a pink teddy bear with wings, and they vary quite drastically in size.
"I wish I was abit happier" - they clearly recognise that the abit is a very happy creature and yearn for that kind of joy.
"Abit more to the right" means please move that object to the right, about the height of an abit will do. Unfortunately, abits are all different sizes so this is difficult to judge.