Have you read the instruction manual that came with the saw at least twice?
Are you following the directions?
Have you purchased Bar Oil, which does not normally come with a saw? Are you refilling the bar oil reservoir periodically, before it empties? If you get sawdust in the bar reservoir it will plug up the bar oil pump.
Are you mixing in carefully measured Two Stroke Chainsaw Oil with your gasoline fuel in a dedicated, clean container?
Tightening the chain regularly as it stretches?
If you get the least amount of dirt/sand in the chain when cutting, the cutters will dull very quickly. Crud stays in the chain and dulls cutters for a long time.
Part of chain saw technique is teaching yourself to keep saw out of the dirt, ALWAYS. A sharp, snug chain puts a much reduced load on the rest of the saw. Do not cut dirty wood, burn it.
I do not know you but from the tenor of Post #1 I speculate that problems are related to lack of experience and not to the saw. Five hours is not very much time, especially spread out over 45 days.
Personally I like to buy Stihl products because Stihl dealers are pretty carefully selected and in my experience liberal with advice. Every Stihl dealer I have encountered provides shop service. I have been using chainsaws regularly for thirty years. My Stihl dealer for the last fifteen years periodically lays a fresh tip on me of stunning illumination.
Husky makes a good saw but you are on your own once out the door…..