IVF treatment and what should I expect?

My husband and I have been trying for 6 years. It turned out that he was the problem 0% sperm count. Countless test and ultrasounds and still NOTHING!!!!

He will need surgery with a urologist to extract sperm if there is any I hope so because that’s the only way to convince. At this point our only chance is IVF! I’m scared to death/ confused I don’t know what to expect or feel. All of this is becoming very emotional and stressful. Can someone walk me through the process? TIA