I do not think that it can be done in a week. Have you considered Viagra yet? You see, it didn't take long for men with normal penile function to realize that they could use it to improve their sex lives, as well as their confidence. However, Viagra does not make your penis bigger
https://www.edrugstore.com/blog/erectile-dysfunction/viagra/does-viagra-increase-penis-size/?amp=1
It works by allowing greater blood flow to your member. This increase in blood flow is what enables you to get erections.