H1B, H4 Visa

i am going for 1st first time stamping to Mumbai, completed the ds 160 and now scheduling the appointment.

while on next page i see series of questions that are making me sweat, can someone please help if you were in similar situation -

1) Do you have previous h1b visa? -

Case Summary - I got my 1st H1B in 2016 for 1 year, after applying for extension i got denied and applied again in Feb 2018 and recently got approved till end of 2018.
what should my answer be for above question ?

if i select YES for question 1) the next question comes - was your prior visa annotated clearance received or department authorized ? - what should be the answer for this question- (YES/NO)

if i select No for question 1) the next question comes " have you ever been refused h1b visa before?

--- what should be my answer for this if my extension was denied in 2017 and i re-applied the extension in 2018 to get approved for 6 months.
--- Answer should be (YES/NO)

-------when selected NO for this question - i get next question "Did your most recent application for a H-1B visa (temporary occupation, temporary worker or trainee) result in you being issued the visa?"
---- YES i assume ?

-------when selected yes for above question - i get next question "Is your previous H-1B visa (temporary occupation, temporary worker or trainee) still valid?"
---- NO i assume ?

---- When selected NO for above question - i get next question " Did your previous H-1B visa (temporary occupation, temporary worker or trainee) expire within the last 12 months?"
-----NO i assume?

The end.

while sweating over this, i realized i forgot to mention the refused visa on DS 160, will this be a problem ?

--- Have you ever been refused a U.S. Visa, or been refused admission to
the United States, or withdrawn your application for admission at the
port of entry? - my answer this was NO