But I just don't know how to get visitors.
Do you have any tips or tricks?
I believe hiring an SEO expert is just a waste of money which leads to no relevant result. What's your opinion about it?
my tips is you can add your site first in search engine like google, yahoo, bing to get index, after this you can trying to promote your site in every where. you can use social media like facebook, twitter, instagram, or anything else, make a video on youtube channel with hot keyword, doing blog walking like visiting other blog and add comment with your link inside your comment. make first backlink for your site with social media sites, makes second backlink into your social media sites.
my advice is free and you don't have to paid in any of SEO expert, you can by your own but i only tell you that you need to be patience when you do this but in the long term, you can see that your site have a solid backlink from big sites so your site will be in the first page in search engine. good luck bro.