Your nic is too high. You need to get some plain PG and cut it to a lower level.
Here is some info on ratios
With a 15ml bottle:
1ml of 36 mg nic liquid mixed with 14ml of filler material (VG, PG, Flavoring)in a 15ml bottle will give you overall a 2.4mg liquid, so here are common strengths listed out:
2.4mg (1ml 36mg nic + 14ml of PG, VG, flavoring)
4.8mg (2ml 36mg nic + 13ml of PG, VG, flavoring)
7.2mg (3ml 36mg nic + 12ml of PG, VG, flavoring)
9.6mg (4ml 36mg nic + 11ml of PG, VG, flavoring)
12 mg (5ml 36mg nic + 10ml of PG, VG, flavoring)
14.4 mg (6ml 36mg nic + 9ml of PG, VG, flavoring)
16.8 mg (7ml 36mg nic + 8ml of PG, VG, flavoring)
19.2 mg (8ml 36mg nic + 7ml of PG, VG, flavoring)
21.6 mg (9ml 36mg nic + 6ml of PG, VG, flavoring)
24 mg (10ml 36mg nic + 5ml of PG, VG, flavoring)
26.4 mg (11ml 36mg nic + 4ml of PG, VG, flavoring)
28.8 mg (12ml 36mg nic + 3ml of PG, VG, flavoring)
31.2 mg (13ml 36mg nic + 2ml of PG, VG, flavoring)
33.6 mg (14ml 36mg nic + 1ml of PG, VG, flavoring)
36 mg (15ml 36mg nic + 0ml of PG, VG, flavoring)