As it is with the beginning of the season, there are bowlers completely new to the sport and there are bowlers that are returning after an extended absence.
If after those few weeks you find your game isn't where you want it to be, a great resource is the USBC Bowling Academy page on YouTube.
For a more extensive library, go directly to the USBCBowlingAcademy.com website.
In my April 23, 2017 entry, I talked about relaxed grip pressure and loose arm swing. USBC has 2 videos that discuss those very subjects.
On relaxed grip pressure:
On loose arm swing: