Being Yeshivish is not the same as being just relgious if that makes sense. Its a lot more stricter
Id suggest finding a job as a babysitter or mothers helper in Lakewood in exchange for some room and board and hopefully get to see what life is really like. People do not talk about the bad only the good,Living with a bad you will get a complete picture.
Maybe you will like what you see and then you can join and marry a kollel guy,but maybe you wont and you can leave without any harm done.
You are young, and I dont care what anyone says, You dont need to get married NOW you can wait a year or 2. Learn about the life from the inside and not the outside looking in, The life is very different from the inside. If you like the life your bashert will be waiting for you.