Several Issues Getting Set Up

Hi there, I am new to WordPress so please forgive me if any of my questions below are really stupid ones. I am really loving the Seasonal theme so I’m hoping you can guide me on how to fix the handful of problems I’m having here. My site url is https://www.somethingcrunchy.co.za.

Firstly, none of my new posts are appearing on my site. If I navigate to a section on the site, going back to the Home page brings it up as completely blank. If I click on any of the categories I’ve created in the sidebar (ie: sides and salads, desserts etc) the page is still blank with no content appearing. I have labelled each post according to it’s respective Page. Am I missing a step?

Secondly, the hover text colour on the main blog title appears as the default blue. I’ve searched through the Customise area and I cannot seem to find where I can fix this. Please see the attached image for the specific headings I’m referring to. Also, the bottom text area of my individual posts – not the footer, but the text that appears after the post itself but before the comments box. To see exactly what I mean, please see the image. I just want to know how I can edit this to look a little less cluttered. Ideally, I’d get rid of all the unnecessary text except for the Catagories and Previous Article.

Then, the “Leave A Comment” link appears above the recipe/blog Heading but I would like to place it at the end of the post instead. Also, each new post I create appears in it’s entirety on the Home page – which makes it look really busy. How can I make it so that it’s only a summary with a “read more” or “continue reading” link, rather?

Lastly, the text in my Main Menu on the sidebar – I am happy with the spacing and size but the font is so skinny that it kind of gets a bit lost in the image. How can I make it thicker/bolder?

Thank you so much! Looking forward to hearing back from you ??