@psmt45 I also always feel weak and unable to endure even short periods of running etc. but I started lifting weights six months ago and it’s been amazing. The thing with strength training is that a lot of rest is built into a workout - you’re not trying to go hard continuously, in fact it can be detrimental to do so, if you are a beginner. You do a set and you rest for at least a minute, sometimes more, after each set. For me, I found that that made all the difference between strength training and any other kind of exercise I’ve ever tried to do - I can push myself for the relatively short time it takes to do my set, and then rest afterwards. Then I’m very ready to do my next set.
Obviously cardio endurance is a whole different thing to strength training and I’m still not as on top of that as I should be, but even without doing much cardio, I do notice that my day to day ability to walk and run has improved just because my body is stronger overall.
If you want to try a good beginner’s strength program, Strong Curves is the best. It’s great at easing you in without getting overwhelmed, but lets you progress in a way that you feel rewarded.