Online I’ve read that the normal resting HR is between 60 and 100. 25 is quite far away from that limit.
If I start exercising I have a resting HR below 45 BPM. I have periods at night that my HR goes below 25.
Glad to hear that your condition was not very serious. However, it very much sounds like lifestyle is having a big impact on your health. Not to be an alarmist and cause increased anxiety and worry but you shouldn’t be having high blood pressure at your age. It’s a pretty clear warning sign that something is out of kilter and you’ll need to make some significant adjustments to get and keep yourself healthy. Best to make those changes now while they can have the greatest impact. Good luck.