Hi there ~
I understand your concerns. However you might need medications to best treat your problems. I laud you for taking the time to use the exercises to your benefit. You have a very common problem of erectile dysfunction
and / or premature ejaculation
and it can be easily treated with medications available during this time. The class of medication is called phosphodiesterase 5 inhibitors (PDE5Inh) selective serotonin reuptake inhibitors and it also helps with decreased libido which is a result of depression
if you are going through one. I advise you to consult with a qualified psychiatrist
who might be able to help in this regard. I hope this helps.
Take care and have a lovely day!