Teen, it sounds like to me (although I could be 100% wrong) that much of your anti-religious outlook is based simply on the fact that you have issues with your parents, your parents are religious and push religion, and you rebel by being anti-religious. Perhaps you can go to family counseling, or a 3rd-party mediator. It’s a lot easier to choose to be religious when you can separate the intellectual decision of religion from emotional parent-child issues. I might also suggest going to an out-of-town yeshiva (one with strong supervision), which will give you the opportunity to explore who you are and who you want to be without the constant negativity engendered by your relationship with your parents. To be clear, I’m not picking sides here in the friction between you and your parents. I’m just naming it as a possible source for your anti-religious view, and one to be dealt with in a manner that you both can respect.
By the way, how old are your siblings? This question is pertinent to helping figure out why your parents wanted to kick you out.
Of course, I could be wrong, and this is simply projection on my part. If I am wrong, please feel free to correct me and add in additional information.