Okay, let’s take a deep breath here. As a parent of a child who objected to MY school choice made for her, let me share how we reached an understanding.
First of all, you must think clearly about your objections in your current situation, WRITE A LIST, then think about what you feel your needs are that are not being met. WRITE A LIST.
You know your parents, you must have some understanding of the best way and time (timing is very important) to approach them.
Do not be confrontational, you are not accusatory, you are simply sharing. You are asking for their understanding and most importantly, you are asking for their help.
Start by saying that you are not as challenged as you want to be. That your spiritual growth is not at the pace you wish it to be. You need their help.
Now, share give them your lists and ask them to read and discuss them. When they have done so, ask them to call you back in so the three of you can discuss them.
Remember, you are not rejecting their values and lifestyle, you simply want to go deeper into the derech they have started you on.
You need their help (with either a transfer, or transportation or paying for an extra chavrusah, etc) and it sounds to me, that your parents have wonderful values and would want to help you achieve your own.
Much Hatzlacha