Vegan for 5 years!
Did it boost up your week shopping costs - no, they are lower. Admittedly we're drinking less booze atm (note: not all booze is vegan - check Barnivore website) but generally a lot cheaper.
Is it easy to eat out.
Never used to be but is often is now
if in doubt, a jacket potato with beans is vegan friendly. Alternatively Indian food often lacks milk/egg anyway and so is suitable.
Can you still enjoy the occasional treat like crisps or chocolate.
Good chocolate is vegan! 70% dark, most brands. Also Aldi had loads of vegan chocolate recently.
How does your lifestyle compare to what it was.
Pretty much the same!
Are you skinny healthier more energetic sleeping better?
I lost a bit of weight initially but put it back on cos I ate too well! Definitely healthier with no dairy as I don't digest it well.
There are lots of vegan cookbooks out there - the Green Roasting Tin is good (only half vegan) and so is the Hugh Fearnley Whittingstall Even More Veg (or similar title - fully vegan).
I went vegan sharing a home with omnivore DH and DC, so it can be done. Just cook a vegan meal as baseline and they can add meat/dairy if they want. My family don't bother most of the time, anymore. #winning