Sure you can do it by yourself

I did it and it was easy.

Here is my list but it was 2 years ago, and you probably need to revise it a little bit.

1. Form I-129 and H Supplement (with check for $)
2. Form I-129W
3. Form I-907 (with check for $1,000) (不加快的话，不需要)
4. Approved ETA-9035
5. Cover Letter from employer
6. Copy of Job Offer Letter
8. Copy of Pay Check
9. Resume of Alien
10. Alien’s Statement
11. Copies of Alien’s Relevant Immigration Papers:
1) Copy of Form I-20
2) Copy of I-94
3) Copy of Employment Authorization Card (OPT)
4) Copy of Passport
5) Copy of Visa
12. Copy of Social Security Card
13. Copy of Alien’s University Diploma
14. Copy of University Transcripts

让吸血鬼律师见鬼去吧