Hey there @Cinders ,
Firstly, welcome to the forums.
Good on you for being able to quit drinking. It can certainly change one's life.
Alcohol is known to slow down your system, and while you feel good for a while, it can cause you to feel really low. However, I've noted that you didn't feel this until AFTER you quit. Have you been feeling like this for a while? If it's been a few months, it's probably worth speaking to your doctor about it.
I know life can feel mundane sometimes. I hear you in regards to the routine. I can relate to the routine, but I feel different about it - that is, i feel safe with the routine.
However, I can remember a time when I really didn't enjoy life. Every day was a chore. Waking up was so much effort. And yes, that was when I was diagnosed with severe depression. It then resulted in anxiety too... but with the right anti-depressant, exercise and healthy diet, I was more able to focus on therapy. Nowadays, life is extraordinary for me.
So yes, if in doubt, it's best to speak to a professional. You may be able to get a mental health care plan which will help with funding psych sessions if you need.
SANE also has a Guided Service which you may be eligible for. You can check your eligibility here: https://www.sane.org/referral
I look forward to hearing how you go.