I got free hosting and domain - but what should I do?

I would definately learn some more on self development. It is very good to have this info and will make it easier for you to talk to potential clients. I would not have an affiliate offer every post. I would also look at articles that have good value and content. You can then write about what you have read. That way it is yours, but you are not spinning the articles you are really just giving what you have learned and helping others in the process.

Make sure that value is what you are about. Remember that giving value is the most important thing that you can do for any website.

I am not sure that you should do this in english, unless the website name is in english, then I guess I would learn. I would also suggest looking into finding a ghost writer if you can afford to that till your english improves, other wise find an english speaking friend that can do editing and proofreading for you.

Good luck with this. I would also remind you that consitency and at least 90 days of working at it will be very helpful. Remember if you get to a poiont where you want to give up, come here and ask for advice. There a plenty of us here that will give you advice and peep talks.

Whatever you do, please don't rewrite the content - you won't be adding anything of value to the reader by doing this. Spend some time reading up on self-development, and then start creating original posts on your blog.

Try to share helpful tips and advice with your readers, and of course you'd be able to promote affiliate products that are related to what you're blogging about - don't just promote random products, try to weave it in as an extension or recommendation of what you're writing about.

Your English would have to be reasonably good (but not perfect) since you're obviously going to be targeting English speaking readers. You can probably hire some decent proofreaders in this forum who can help you with the minor corrections that would most probably be needed.