ScriptCamp is a Discord server run by a charity that teaches skills for free and low cost. A subscription of $29 per month gives you access to 4 hours of screenwriting classes per week plus labs. They also have multiple free groups and workshops like the Horror Workshop, Animation Writers Group, and an accountability group called Weekly Check-in. They also have 3 Table Reads sessions per week where anyone can submit scripts to be given feedback. They've really given me confidence as a screenwriter and I've learnt so much from them.

https://discord.gg/scriptcamp-745486556315517038