Just signed up for the 2019 AtoZ Challenge. If you have never heard of this, you promise (or at least promise to try!) to blog for 26 days in April, using a different letter of the alphabet every day to prompt what you write. It has been running since 2010 with more and more Bloggers joining every year.
They provide a calendar and lots of prompts to get you started. I think that preparation will be key as actually delivering EVERY day (except Sundays!) something that others will want to read and possibly even look forward to is the real challenge.
If you want to take your blogging to the next level – at least find out what it is all about – the 2019 AtoZ Challenge.