DLD covered the basics. Let's expand further.
You're not only starting a new journey in PE, but a new journey in life. Congrats, brother. We cannot unfurl our wings to their max limits until we take our own flights on our own power.
You are at were I was decades ago. Yes, you can get to 8x6 in due time. I'm at 7.3x6.3 from where you are after 2.5 year-ish. Have to stop due to health conditions at the moment and will start again after I'm fully recovered. So 3 years of disciplined mindset and dedication, you can get there.
15 minutes to 30 minutes a day is considered as a transitional period for beginner, or newbie routines. As you progress, based on where your penile growth stages may be, the body may calls out for 2 to 16 hours of partial active traction using either an extender or an all day stretcher to maximize your growth. Most simply wrap, which is fine if the wrap can maintain a good traction at 900g or greater and in full comforts, but using an extender to place your traction load at around 1100g is the optimal for growth using manual method.
To define manual method, it's using hands and simple devices only. For mechanical assist, it's using an extender/all day stetcher, and advanced fulcrum stretcher like the
Length Master 3. If you need more info on this, we'll gladly expand your knowledge on the matter.
Hanging is merely a single tool among the tools. Hangin method must follow a progressive stage in increasing 0.5lb per every 2 to 3 weeks, or even 4 to 5 weeks as you start at 2.5lbs of initial free
weight traction load. You increase too fast and too soon, the penile tissues get stunt and your growth gets reduced. The knowledge we've gained in the past 2+ decades will be your gains in PE.
Hanging is great as part of the entire routine, but you definitely want to add it to the overall routine to vary your exercises between manual, mechanical assist, pumping, and
hanging exercises.