i am kind of confused. so is it OK for H4 to work or not?

If yes, just keep trying, don't get your hopes too high on submitting resumes online. i
read somewhere that the success rate there is less than 5%. your best bet is to let
everyone you know that you are looking for a job and refer you. second best bet is to
pick up a phone and call these local companies one by one. it's easier for people
to reject a piece of "faceless" paper than a real person. if lack of experience is your main
concern, offer to do an unpaid internship. the important thing is to get in there.