Yes traffic is an issue.
Also more websites asking for Adsense than there are advertisers asking for more websites.:-)
The blog reads more like a personal diary than a general info site on those topics, and there is not even an About page to show your expertise etc
This Expertise Authority Trust is fairly new, if you’ve not been posting for a while you may not be aware of it.
So such sites giving advice without established authority do not rank well in Search as well as are not approved in Adsense.
It might be easier for you to look for Affiliates or other ad companies when and if visitor traffic improves to around a few thousand/ day .
That is my threshold for answering the question — is it worthwhile to advertise on my site?
Since most ads pay only a few cents, you need volume traffic from search engines to make more than a few dollars/ month.
And it could take well over a year at least to get to the first payment.