Please Help? Am i deficient

I’v always suffered with Anxiety, Depression, OCD and Lethargy. I’v come to accept it as just apart of me.

My labs came back as:

Serum B12: 321 ng/L Serum Folate: 3.3 ug/L Active B12: 103 pmol/L Ferritin: 175 ug/L Vitamin D: 136.3 nmol/L

I have recently started the protocol in the Guide. Sublingual Methyl B12 5-6Mg a day. Aswell as 2.5 g of Methyl Folate. As well as Thorne 2 a day, B Complex, Trace Mineral Complex and Electrolyte Drink.

Should i be injecting aswell? The Doctors are telling me i am “Fine” and are refusing injections. My symtoms are mainly anxiety based. I know alot of people get a lot other symptoms. But because mine are mainly crippling anxiety, depression and panic attacks. Is that enough of a symptom list to consider B12 deficiency.