Hello and welcome to MedHelp's forums. We appreciate your question and will try to help. First, please ask your doctor first and foremost to go over your results with you. This is your best source of information. Your monocytes are within normal with the range of 0 to 9% being normal. RBC normal range is 4.7 to 6.1 (for men). That would make you just below normal. So close to normal that I'm not sure it would be of a concern to your doctor but you can ask that question. Are you at all anemic? Here is a guide to help you see if you have any symptoms. https://www.webmd.com/a-to-z-guides/understanding-anemia-basics#1. With your numbers so close to normal, it would be fairly easy to remedy with either diet or a multi vitamin if you don't take one. Ask your doctor about this.
Your WBC is a bit low as you know. That can be caused by your vitamin deficiencies. Also having a typical virus can cause this.
Have you had any discussions regarding your diet, proper nutrition to work on these vitamin deficiencies or has it been recommended to start a good multi vitamin or supplements? Please discuss with your doctor.
Low neutrophils can be caused by vitamin deficiency as well along with other things. However, you are within the normal range at this time according to medicinenet. Please see this information though if you are deemed low by your doctor. https://www.medicinenet.com/neutropenia/article.htm#neutropenia_definition_and_facts
Here is some basic information on these blood count tests as well. https://www.webmd.com/a-to-z-guides/complete-blood-count#1
That's a lot of information to read through. But your numbers are borderline to normal from what I can tell and indicate some vitamin deficiencies you can work on to see if it improves. Speak to your doctor for guidance.