Ultimately it's your decision to make. That being said, I don't believe there's a specific state you have to be in to "qualify" for suicide. Peple end their lives for all sorts of reasons, some of whom are "stable". There are plenty of non-mental illness reasons why someone would choose to ctb (ie. physical illness, the declining state of the world, finances, etc.) Regardless of what you choose, there are people here who will support you and the path you take.
I relate to what you're feeling right now. I myself have gotten better at managing my mental illnesses/learning disabilites, and my quality of life has significantly improved, but there's still a part of me that doesn't see myself living for much longer. For me, it never goes away, it only fluctuates in severity depending on the circumstance.
Anywho, best of luck in whatever you choose. Take care.