What are some pieces of advise for my blog?

If you wanna do blogging in a better way then you should know and follow are:

Try to write content with a minimum length of 1000 words in a frequent intervals.

The topic and content should have a high relevancy.

Try to give your content through points.

Post your content to your blog in a question and answer basis.

Before writing a content, make an analysis of what your going to write within youeself,which will help to deliver a best blog.

Give relevant keywords and perform a deep keyword research before placing it.

Share your content in social medias after it is uploaded to your blog.

Give outbound links to your blog as much as possible and do when it is necessary.

Maintain consistency on posting contents to your blog , either by daily , weekly monthly or in a frequent basis.

Is creating a blog still a good way to earn money?

Yes ,

Creating a blog is still a very good way to earn money,

For a reference , the overview procedure to earn money through blog is given.

Once you start your blog and maintain consistency in posting content with respect to your spspecific interest or field ,

Repeat the above process for six months.
Then apply for google adsense, Make Money Online Through Website Monetization

Moreover i would suggest blogger.com for starting a blog which would suffice you on all aspects.

After you get approval , start money and at the end you had turned passion to profit.