Ok, so i got the stitch and bitch book ( i could put this in that section, but m here so w/e also its more a question???... w/e) , andi read it, and i started a hat and i cast on.... and now im lost. ok heres my list of problems

1.when it says "knit in some way for 1 3/4, what to they mean by the numbers
2. St st? for 3 3/4 more it says
3. it says to place a stitch marker after every 12th st.! what even is a stitch marker?
4. on the top it says (i quote)
"Stitch pattern - seed stitch (on even number of sts in the round flat)
rnd/row 1:*K1, P1, rep from * around
rnd/row 2: *P1, k1, rep from * aroung
rep rnds/row 1-2 for pattern."
WHAT DOES THAT MEAN!!!!!!!!!!
5. dec rnd (switch to dpn when neccessary). I know dpn, double pointed needles, no idea how to use them
6. k2tog?
7. it says to "rep dec rnd 3 times more - until 56 titches; then every rrnd until 7"... no idea wtf that means
8. thread tail through rems 7 sts, pull firmly. WHAT???
9. beg to rnd?
10. pu 18 sts? pu through loops of the st?
wow, 10 things.
Sorry im so hopeless, but i did read through the whole book and practice, and ive done scarfs and stuff... but u know, i need some support on this damn hat!!!!!!!!
THANKS IN ADVANCE!!!!!!!!!!!!
i'm screwed aren't I? lol