Hi could you give me advice on SEO done in http://www.smsgalvanizacija.com
The website is not looking very well. You have 2 H1 on a page - this is not really correct for SEO. I don't understand the site language and it's difficult to make a correct evaluation of your website.
There are a lot of SEO guides and tips on the internet if you're looking for them. Just make sure that your resources are reliable.
I dont think directory submitters make much difference. Find some good directories and start manually submitting. I also don't think submitting your link to Google makes much difference. If you have inbound links you will get found. You could start off with somewhere like Gumtree for a fast indexed link.