Look, if you need the higher doses to help with the depression piece, you may want to ask the doc about something to help keep you awake. Here in the US, the most commonly used medications are Adderall (dextroamphetamine) and Provigil (modafinil). I have been on both and they both work for me, but I had a SE from the Adderall, so we switched to the Provigil. It works great. Were I not on one of these two meds, I would live in my bed. Sleep my life away. These medication have probably, in all candor, save my life. Just something for you to ponder.

Sending you positive vibes. Stay after that doc. Not sure how healthcare really works in the UK these days, but you absolutely deserve and need a prompt response. Stay on it. Advocate for you!!