feeling defeated and just straight up irritated

so i went to see a fertility doctor back in july, he discovered i had PCOS and i was hypoglycemic. He told me to stress less, and that i was over weight so i needed to see the dietitian in his office. I’m 5”2’ and i weigh 192. I started metformin 500mg once a day for two weeks, then i tried to take 2 tablets a day...my body was not having it, got extremely sick. I finally got ahold of my doctor and started taking 750mg a day for a week, body still wasn’t having it. So here i am back on the 500mg tablet once a day. All while i was on a diet that i have to eat a certain amount a day and a certain amount of protein and carbs per meal. I’m sorry but that shit was so hard to do. My dietitian wants me eating every 2- 2 1/2 hours, when it comes to my job i don’t have that time, and also i’m running out of snacks to eat that don’t have to stay cold. I feel so defeated because i just want to move forward, and the fact i have to face my dietitian knowing i’ve been having such a hard time keeping up with this diet gives me such anxiety. I go back in 2 weeks for a metabolic and as much as i’ve slipped up i really hope i’ve improved just some because i need something to keep me going. Sorry guys just needed to vent alittle 🤷🏻‍♀️