So you are thinking of starting a blog? I know how that feels. I felt that way too several years ago.
First let me say - DO IT!! You can do this.
If you feel like you have something to say, some way you want to reach out and help people, regardless of the topic there is no better time than now. I mean it.
I went through all the mental battles too
I could make a list a mile long but I am telling you - silence your nay saying self and get to writing and posting.
Start with a free site.
A few to look at are:
I have a rule for myself and it goes for whatever I am embarking on be it a new way of eating, excercise, business, hobby, hobby hope to turn into a business and it is this - little to no $$ at first until I know I am going to stick with it.
I also employ the little to no money rule because there are so many things out there to spend money on, so many options, until you get your feet wet a little bit you won't really know what the best or wisest first investments will be.
With one exception - your domain name, especially if you have a good one you are really set on, and for that you can use a quick, inexpensive domain purchase site such as Go Daddy.
If you are just starting up I would love to visit your site and support you! Drop you link in the comments below!