Talk to Gastroenterologist on H.pylori Positive

one day while playing i felt sudden appetite i bought bananas and eat almost 5-6 of them. after eating i felt immediate sweet pain in stomach, then after 4-5 hours i took my dinner. After my dinner i suddenly felt vomit, i had 3-4 big vomits and all i eat came out. 2-3 days after i went to my gastro again and was diagnosed H.plori positive. There is also want to highlight that before being positive, i had the same test 2-3 months before both in stool and blood and was negative. I have lost all my appetite and feel full almost 24hrs, i dont have any pain on other problems, cant sleep well and fell depressed most of the time. what to do now. I am taking PPI (Proton 40mg before food), clarithromycin (Claritt 500 mg twice a day after food), amoxicillin (HYMOX 500mg 2 capsules after 12hrs) and metronidazole (Flagyl 250mg thrice a day). What else i can do to cure completely. also i have heard that H.Pylori cant be treated and is resistant to these medicines, it made me more worried. kindly