Scared I might have throat cancer

Hi everyone basically for over a year now I've had massive swollen lymph nodes in my neck like under my jaw and all around that area. Last year in August I had a scan and they said yes massive lumps but they don't think they're cancerous and sent me away. Everytime I went to the doctors I felt as though I'm pestering them and stopped going. The lumps have continued to grow and get bigger over the course of the year. I've also developed this feeling of something stuck on my throat constantly. To the point I'm clearing my throat all day and night desperately. My right tonsil is swollen massively and has been for months. I've not gone back to the doctors because I can't handle not sleeping due to my throat clearing. This doctor took me serious and is concerned about it. They've sent me for scans of the lumps and ENT appointment to have a camera up my nose and down my throat. I'm 21 and only smoke when I drink which is very infrequent like once every two months? I'm looking to speak to people who have cancer in their throat to hear if you guys experienced what I have? Thank you