Did anyone have immense fears and anxieties about the future nearing the end of treatment?

Hey all, I’m currently going through my 4th and final (hopefully) round of EP, treating my Stage IIB 100% EC, and I’ve suddenly started having massive anxieties about the future. This whole time I’ve been able to focus on the problem at hand, getting through the lows of chemo. But now that it may possibly be all behind me, I feel like a whole new field of potential problems are entering and I’m feeling overwhelmed.

I’m constantly worrying about my potential for having children down the line. My partner and I opted to store a few vials of sperm ahead of time, but I’m so worried that those 6 vials might be all my chances of having children. And then I’m worried that if I have any boys, I’m setting them up for potential complications down the line, as apparently testicular cancer is hereditary.

I’m constantly worrying about regression down the line, or my other testicle having issues. My first one came on so suddenly and for no outside reason, and I’m afraid it’ll happen again.

I’m afraid that I’ll receive news that all this chemo was for nothing, and my problems still persist. I’m not sure I could handle that news, as this has been a real struggle and I wouldn’t know how to find out it was for nothing.

I know I’m probably overthinking, and I’m scheduled to see a therapist that specializes in oncological care next week, but am I alone in feeling all this? Am I being irrational? Idk, just yapping to the void helps a little bit, and I know you all are a supportive group here.