Using JWST
The Call for Proposals for General Observers Cycle 1 has re-opened. The dealdine is May 1 2020.
Several science targets are already included in Guaranteed Time programs. Duplication should be checked.
You can attend time proposal training webinars (past ones and upcoming ones) or participate in person to workshops
JWST Time Proposal Training Workshop
Past and Upcoming Time Proposal Training Webinars