Decision making

Hello Rabbi, I am facing a difficult dilemma.
I am a student in a Heder yeshiva who enlisted four months ago for a job that I really don’t connect with and have a very difficult time with.
On the one hand, I am very connected to Torah study and I try to study and observe as much as possible. And when I was in yeshiva, you could say that I would make the most of my time.
On the other hand, I want to play a significant role in the army, and my only option for a significant role is to sign a waiver of my yeshiva status and extend my service in the IDF to full service. Which will cause me some difficult religious difficulties, and I will miss out on returning to the yeshiva with my friends, and there is no telling whether in two and a half years I will want to return to the yeshiva (currently I am sure I will return, but there is no telling how I will feel after two years in the IDF in a completely secular society).
If I do not extend my service, it will be very difficult for me to properly utilize the year and a little that I have left in service to study Torah, because I am having a very hard time with the lack of activity in my current role, and this is affecting my desire.