Work on general performances of your site and blog section, and first make sure that they can load fast and that each element on it is working properly, and that users can easily navigate through it and find all desired information. On the second part, do a thorough keywords research that you will add into meta-tags and tags and that you'll try to include as well in your guest posts. It's also important here that you have pretty good and valuable backlinks that come from other reliable sources online that have good domain authority. Lastly, if you want to increase traffic, you have to work on the promotion of your site and advertise it on different digital platforms so that you attract new users to it.