Having moved many times, - usually due to partner's work - I feel your pain OP. (My own work is portable but not all of life can be cleanly uprooted.)
You always leave some lovely things behind - and miss them. (Or rejoice that you had them for a while.)
Every single place we have gone to (some good... some pretty tough) there have been things that are better than before and some worse. It has sometimes been hard to cope of course.
In a place that seems worse than before, Pollyanna- ing really helps. (You remember: the 'glad game' from the book - and film Pollyanna? What is the good thing about a mis-delivery to their island home meaning that Pollyanna and father's only Christmas presents that year would be a shipment of artificial limbs? ... You all have to come up with a reason to be glad about it. :) ) We played it often and it made us laugh.
It also helped with the thinking positive and concentrating on the good things. The power of the mind is amazing - quite unreasonable in fact. You can start by acting and end up feeling positive!
You've already mentioned a few positives - having a better place to live in - not having money worries due to excessive costs.
Don't let the past get too sunny in your memory either. Do allow yourself to remember the irritations/worries that you left behind. 'Sour grapes' can help too!
My husband used to list pros and cons before we made decisions. He found it a comfort to look back later when wondering why on earth he had chosen certain paths! I prefer not to look back.)