Homer gets much easier the more you read, and eventually you can work up to reading rapidly almost without a dictionary. Congratulations on finishing -- for the first time.
With so much Homer under your belt, the Homeric Hymns shouldn't be too difficult, either. There is a commentary on three of them in the Cambridge Greek and Latin Classics (Green and Yellow) series by Nicholas Richardson:
https://www.amazon.co.uk/Three-Homeric- ... ay&sr=8-16
Richardson has also published a separate commentary on the Hymn to Demeter, but it's very expensive.
If you can read Italian, there is a commentary on the entire set of Homeric Hymns by Filippo Càssola:
https://www.amazon.com/INNI-OMERICI-Fil ... way&sr=8-1
You can order this directly from Mondadori if you can't find it elsewhere.
The new Loeb edition by West will have, in addition to an English translation, some useful, if brief, notes:
https://www.amazon.com/Homeric-Hymns-Ap ... ay&sr=8-1
For Hesiod, try to get your hands on West's commentaries. They're 50+ years old, but they are really rich in information and insights.
It's too late to correct och. You've been exposed as Swedish.
