Welcome onboard @alanmurray. I think all us Excel folk a little crazy so don't feel alone. Thanks for taking part in the beta, I see you found out how to add your profile picture, I was about to reply on linkedin.

It also looks like you selected post to blog when writing this. When you post to blog, it posts to your personal blog and not the community ( yes you can also have a personal blog here). If you want the post to be shown on your blog and within the community, from the community, select New post. No not change the setting to Post to Blog. This will post directly to the community. For it to show on your own blog too, you must share ( on steem we call sharing resteeming. There is a little kinda arrow button beside the reply option at the end of each post, this is the resteem button)

You are not the first to have missed the community with the post. This is great feedback as it needs to be more clear.