I struggled with this for a while, but eventually things started to settle down and I can sit now with relative ease. I actually enjoy meditating now...not to the point where I run home so that I can sit on the cushion to meditate, but when I do have to do it I don't feel resistance like I use to. I'm not saying this to brag or anything...I'm saying it to give you some hope that things can change and shift if you stick to it and you practice skillfully. If you're not doing the meditation practice skillfully then it won't bare much fruit. However, sometimes you need to sit through a whole lot of crap before you figure out what's skillful and what isn't. You need to observe and see what's working and what isn't. This is all part of the process and you'll improve your discernment and awareness in the process. I even wrote a post a while ago here saying that I don't like to meditate, but like I said before my attitude has shifted and how meditating feels like taking a mental bath.
You should definitely stick with it, but you might need to adjust things or look more closely at what's working and what isn't. You might just have to build up your endurance and be able to sit through the crap when it comes up. Sure, this might sound torturous, but there's wisdom to be found in all of it. Don't get too caught up in the things that arise and fall away and focus more on the big picture of the nature of these things.
Diamonds are made under pressure.