So sad and depressed because I smoked again!?

[ChiTownRepresent]

Well, today was the first time in 5 months since I've smoked shisha. I have smoked cigarettes about 2 months ago, but that was the last thing I ever smoked. I was very happy that I was starting to heal and get back on shape, but I smoked shisha today after 5 months of no shisha and 2 months of no cigarettes. I am very sad now, I knew I was going to regret it but I did it anyways :/. I used to do wrestling junior year but didn't do wrestling during senior year because I smoked a couple of times during the summer before senior year. I am so paranoid that the smoking has had too much harm on me, so I didn't do wrestling although the coach wanted me to. I haven't been very active since junior year and im in my freshmen year in college.

Any suggestions other then stop smoking?

Is there hope that I will recover?

I tried running as much as I did during wrestling season before I smoked and I couldn't even go half way without dying. I struggled until I got to my "warm up" during wrestling season. I used to run after every practice and it was a breeze, but now I literally have a hard time after about 10 minutes . I ran earlier today before I smokes shisha to see if I had improved since the time I stopped smoking and I felt that I did improve a bit, but not near as much as I expected.

Any suggestions or thoughts please?

Don't write just quit smoking because I already know that.

Sorry this is so long, but thank you.