swollen lymph nodes - scared of lymphoma

hi, if anyone could help me out or reassure me that will be amazing - basically like 2 months ago i noticed a lump on the side of my neck - painless and hasn't gone down since but also hasn't grown (worried i have a low grade type of lymphoma that is slow growing) it happened around the same time as i had covid but never went down and could've been there for longer. i also have a smaller one above it that i found at the same time - also have two at the top of my neck opposite each other but i'm not that worried as they always swell when i'm in ill but one is tender. i've been to the doctors and he's referred me for a blood test and said if it's still there in a month i have to go back but i am almost certain it will still be there - i'm so so so worried i can't do anything! the doctor said my largest one he could feel felt about 6mm which is apparently normal when i search it up but it's also not normal if u can feel them? losing my mind over this as the only thing it's saying that if the swollen lymph nodes haven't gone down is lymphoma.