Hiya!
This is a variation on one of our Frequently Asked Questions. Hopefully some of these great responses can point you in the right direction.
I hope this helps! If you have any further questions, there are additional answers in the WWII Italy FAQ, or you can feel free to ask. :)
It can be argued that Germany was actually the one being not very useful to its Italian ally!
As I've already explained in another post:
The German ally [...] proved to be just as useful as a box of bricks when it wasn't actively contrasting the Italians' own plans. The two commands - thinking of North Africa here - distrusted each other, the Italians' repeated requests for support and equipment (need those 88s, mr. Ciano? You shall not have them!) or materiel (the fleet at Taranto was delivered a fraction of the fuel it was promised) were routinely denied, the commands were plagued by disagreements, and so on. No one could possibly expect such a shaky and uneasy alliance to properly work out.
But yes - both countries ended up being quite a weight for each other.