Rebshidduch, if you don’t know much about a kollel lifestyle, why are you looking for a boy who wants to learn in kollel? Rather than saying you’re looking for kollel guys, as those are usually men who learned in yeshiva (does not usually pay any money) and got married and now learn in a kollel (which hopefully pays them money), you should say that you’re looking for a yeshiva bochur.
As the kollel lifestyle requires many sacrifices, it should not be entered into lightly and the girl should be fairly familiar with what life in the home looks like in order to make a success of her marriage. If she has expectations that cannot be fulfilled in this type of life, then she will not get what she wants in the end of things.
Also, if you are looking to get into shidduchim without your parents’ involvement, are they planning on helping you after you get married? While it is not obligatory, many boys will need some kind of assistance to balance out the support that they get from their kollel and the usually low starting salary of the woman when she starts working. Of course if you have money saved up and/or a good job, then your parents do not need to be involved in that aspect of the finances.
Do you have a teacher from high school or seminary who you were close to/friendly with and can help advise you? The best person is someone who actually lives that lifestyle, so you can ask questions and get feedback.
Hatzlacha!