Hi welcome to FW! I'm delighted you found your way here, or more aptly that you followed God's leading and he led you here. FW was a huge answer to prayer for me. I have learned so much from the kind people here.
The writing challenge is one of the biggest pulls for sure. We are just finishing up the quarter before we take a mini-break. The topic due next Thursday is The Elephant in the Room. There are some great stories in the challenges too. I am impressed with the diversity. You can find devotions and testimonials along with Biblical fiction and children's stories. We even have romance and sci-fi sprinkled among the poems.
The forums offer all kinds of support. The Open Forum is a great place to talk about writing or publishing topics. The prayer forum is a great place to lift up your joys and concerns. The water Cooler has a mix of everything. One thread that is worth investigating is Jan's Writing Basics. Jan is a long-time member and discuss various writing topics each week. She is great about answering everyone who participates in the discussion.
Have fun exploring and feel free to jump into any topic that piques your curiosity. If you have any questions, there will be someone along who can answer them or point you in the right direction.