Hey man, you’ll get the gains you’re looking for probably by taking that. You can do a 8 week cycle at max. It will be liver toxic so you want to take some liver care with it (milk thistle or just a general liver care pill). The trick with steroids is keeping your gains after your cycle which using a PCT will increase the sustainability of that. Since Dianabol has a high water retention rate then that will be even harder for you to do. I would suggest using something that has a low water retention rate.
It’s your body, if you think you’re ready then no one on here can tell you different. Do what YOU want.
There’s a lot of info out there so do your research on websites and other forums. make sure you understand everything you’re gunna put into your body and what the consquences are and what will happen.