Hey, is there any chance you can message me? New here so can't DM youMake sure your friend is well-versed in the subject matter for their opinion to carry weight.
And don't get too bogged down by what others say, especially if it doesn't always line up with reality. If your friend was able to spot on about your results being off, go ahead and ask for his help. He is probably the best person to give you a hand, knowing all the numbers and ins and outs of your operation.