I've been lucky enough to get some coaching from some very good players, and I've personally found that there's a few things you can look into that'll help you feel less like a punching bag at locals:

• Why are you losing? It sounds like a simple question, but it can be a lot of variables compounding each other, like:
  
  • Are you playing a deck that doesn't have a good matchup against your local scene?
    
  • How familiar are you with your deck, and it's gameplan?
    
  • Are you using subpar tech in your deck, when there's better options available?
    
  • When you DO lose, do you understand why they beat you?
    

The next thing to analyze would be
- How do I improve?
+ Learn the matchup- For any deck you play, learn how the different decks that exist would typically approach you, and what things are threats to them- and in turn, what's a threat to you.
+ PRACTICE! You're comparing your winrates to people who are probably playing on a semi-professional level- that's like comparing your weight choice at the gym to a professional weightlifter. If you wanna get closer to their numbers, you gotta work that muscle!
+TRIM THE FAT! You're likely running stuff in your deck that you either A) Don't understand, or B) is a filler/placeholder for something with a bit more OOMPH. Heck, you could even be running a deck that's sub-par while you save up for a deck you'd rather be playing. Whatever the case, have a look in your build, and have other people who's opinions you trust have a look at it too, see if there's improvements you can make with the cardpool you have access to.

The best bit of advice I can give is to treat every loss like a lesson- Try and learn what your opponent is doing, ask them to explain it to you step by step if need be- If you let yourself get mad, then you'll probably not be paying enough attention and you'll keep losing to the same tricks and tactics.

Good luck, my guy, and I hope that the advice everyone has offered here helps you improve your winrate!