Today I felt a little good thay afterbetter than yesterday. Today I felt a little better than yesterday.

good -> better -> best

Today I felt a little good thay afterquite good about yesterday. Today I felt quite good about yesterday.

Today I felt a little good thay afterbetter than yesterday. Today I felt little better than yesterday.

Technically, well and better are used to describe your state of wellness, not good. "After yesterday" is redundant as today implicitly imples that.

Today, I felt a little good thaybetter after yesterday. Today, I felt a little better after yesterday.

Today I felt a little good thay afterbetter than yesterday. Today I felt a little better than yesterday.

when you say "than" to contrast something you it usually follows this formula : "x is better than Y" in this case today is 'x' and yesterday is 'y' thusly "I felt better today(x) than yesterday(y)"

I helped my my friend thatwhen she needed me. I helped my friend when she needed me.

I helped myout my friend that shewho needed me. I helped out my friend who needed me.

I helped my my friend that shewho needed me. I helped my friend who needed me.

Who is typically used for subordinate clauses when relating to a person. That is used more for objects e.g. "I have a phone that doesn't work."

I helped my my friend thatbecause she needed me. I helped my my friend because she needed me.