Early morning erection is a good sign of your virility. Because you stopped masturbating you are having nocturnal emissions. Excess produced by body system, if not utilized, has to come out. Body storage capacity once filled it will have to be ejaculated during beautiful dreams. Semen is just like any other body secretion, nothing precious, as not to be lost. So ignore that. As far as you bending of penis, you have to be examined and rule out extreme degree of Hypospadias
, Peronie's disease that may produce a condition called chordee, ventral curvature of penis. If it is so, it can be corrected by a genito-urinary surgeon. If there is nothing like this, You may be able to insert into the vagina, however the direction may be or curved. That is the ultimate goal. Don't worry AND nothing serious.