SEO help 1 time job 8 year old domin name.

I need help with SEO 1 time opencart 3.0.3.7
Domain name and website is 8 years old
There is google analytics information dating back 8 years.
Robots.txt added working good.



Suggested On page Work (we do the suggested work ourself)
Meta tags
titles
h1
h2
etc.

Keyword Research
25 English Keywords
5 Thai language keywords

Content Suggestion (fresh Content)
Heading Suggestion

Etc.

1 TIME JOB please read work before bidding.