The answer would be "YES". If you have a marriage interview coming up, it means that you already submitted the form... if you said No there, just...

How to immigrate to America from East Ukraine?

You need to have an offer of employment; a family member or valid asylum claim; may try investment or maybe sponsoring yourself under exception...

I am a currently on F-1. My name was mixed up (i.e my last name is used as my middle name) )when I was back home and I didn't

It all depends who issued what documents with incorrect name(s). Also, it is important to check how your name was written on your visa application...

Immigration

Principal is the person applying for asylum; derivatives usually do not testify in the case, and they are just tagged along. I would not advise...

I-134 form

Read the instructions to the form carefully if you submit it yourself.

Switching jobs after H1 approval but before H1 stamping?

Yes, you can, if a new employer files for you; you will be able to enter only if new petition is approved.

What can happen to me if my deferred action application is denied?

Most likely not. The USCIS announced that it would not refer cases to ICE unless the individuals have some strong criminal history.

Can I get back my green card

No, sorry. The DV lottery is tricky: once you missed your deadline it cannot be restored...

Asylums

Nobody can tell your chances without reviewing your case. As to the marriage to your girl friend: she needs to be a US citizen for you to adjust...

Why I haven't got any notification from the NVC ?

Sometimes, it takes 3-4 months. You just need to wait..