4 times a week, 8 pints ( I'll scale it down to 500ml, rather than 568ml which is a pint) a night at 5%, so the minimum you said, is 80 units of alcohol a week or about 4 times the recommended maximum. If you go to your top end of a 10 full pints, 4 times a week at 8% ABV thats a whopping over 181 units per week.
As someone who in my younger days drank 100 units a week regularly I can say excessive alcohol consumption causes a lot of physical and mental problems that will stay with you for life. Cut down while you can. There have been a few posts on here asking what people drink and you are probably right at the top of the list, I still havent seen anyone who drinks less than me at about 4 pints a week although recently I've been having 6-8 some weeks. This week, 5 pints.
If you were really drinking anywhere near the top end of what you claim I reckon you would be dead within a year. I used to get all sort so problems including waking up with my whole left side (face to feet) completely numb after a heavy session and had to use my right hand to shake my left hand to start getting feeling back in it, then have to slide myself off the bed and move around to get feeling back in the rest of my left side. Had to leave my job before I would have been sacked.
In case you dont know, to work out the units, one unit is 10ml of alcohol. You times the volume of the drink by the ABV to the alcohol in ml and divide by 10 for the units, so a 500ml bottle at 5% ABV is 500ml X 5%= 25ml, 25/10 is 2.5 units. So for you minimum of 8 bottles is 8 X 2.5 = 20 units a night.