@alju Hi, I’m glad you got in touch. Have you been tested in other ways, other than blood? If not, ask your primary care doctor to refer you for testing. I have had to subsequently be driven an hour away for follow-up visits at a neuroscience center at a university hospital. I go every six months. They’ll take it from there, giving you advice, meds, etc. If you have a spouse, they should attend with you.
Also, you should read what you can on reputable sites.
A good motivational book is “Still Me: Accepting Alzheimer’s Without Losing Yourself” by Rebecca Chopp. She wrote it five years after her diagnosis! So there’s hope that you’ll have many good years yet. Good luck!