I'm not sure how to start. can anyone with a few letters? once i get a start, i can finish

Just list what we know

f=b

h=g=56

d+2f=180

d=f+c

3f+c=180

a+c+f=180

d+e=180

e=2f

a+66+f=180

a+f=114

YES

a+c+f=180

a+f=114

c=66

now rewrite everything with c in it

3f+66=180

3f=114

this also means that 2f=a (f+a=114)

f=38=b

2f=a=76=e

d+2f=180

d+76=180

d=104

now h

all angles in a quadrilateral add to 360

e+d+125+h=360

76+104+125+h=360

h=55

now I

f+h+i=180

38+55+i=180

i=87

and dunno what missing angle at right (makes up far right triangle made up of 56 and i)

a-76

b=38

c=66

d=104

e=76

f=38

g=56

h=55