Boutique Biz(comprehensive Knowledge)

I came to Lagos after my service year hoping to pick a job since last year. But up till now nothing is forthcoming. I was just thinking of the possibility of going into a self employed biz. I thought of something like boutique, but have little knowledge of it.

Please, i need somebody to put me through on how to go about it, both knowing the much of capital involve, for a std boutique.

I appreciate your idea, remain connected.