Which box goggle? Overhead straps can help relieve some pressure on the nose from the leverage of the longer case. I got a strong 3rd party strap (no overhead) on amazon for my box pro and kept everything else stock, works really well. The biggest thing Id say is to keep adjusting them until they feel right and dont be afraid to redo it after they break in a bit.
Keep your head up when you're flying/dont let the antennas point to the ground, this is a big adjustment for new pilots. A lot of people end up looking like bent over addicts when they first start. It's kind of like being a Warg in Game of Thrones, your body shuts down sub-conscious processes to compensate for the novel visual/mental processing. Just try to be aware of this and enjoy the new feelings!!
Also remember to fly in both directions, there's nothing wrong with sitting down, and film yourself with your phone occasionally to see what youre physically doing when flying because you might not remember/be aware of it.