FFBBT613-I think I can say I’m sort of in a similar boat to you. I’m just a bit older but your background sounds pretty identical to mine. I think the most important thing for you to remember is what @DQB said (you said it beautifully: do not rely on your parents. My parents are also more modern than me and they have told me many times they won’t support me. Is it hard to see other people get married run off to Eretz Yisroel on their parents credit cards- yes, a bit. But that’s life and HaShem gives everyone their own challenges.
What I did was I went to seminary and now I’m in university studying To become a nurse. I do not think getting a one year degree is gonna get me an income I will be happy living off of (assistant teacher secretary etc.) I personally have a love for helping others and I’m interested in health and how the human body functions. I’ve actualy grown closer To hashem in the secular university I am in.
Life isn’t always ideal, but it’s how you decide to live it and take Yor challenges that will make R life how it is. Just learn to rely on yourself (of course via hashem) but not your parents. They seem like wonderful loving people, but this is Ur choice, live it and make it your choice.