Yes communities are so important. I got involved with the Homesteaders community very early on in my time on steemit and that has helped so much.

Two big positives of communities are mentoring and retention.

If you find a good community there will certainly be people there who will help answer all the questions you have as a newcomer to the platform.

I would also suggest that the retention rate for people involved in active communities is much much higher than those that go it alone.