helpful
Synonyms for "liking to help others" include: altruistic, compassionate, helpful, and benevolent.
to help others = la'azor le'anashim acherim (לעזור לאנשים אחרים)
Wikipedia claims that the phrase "Help me help you" (and many others) was spawned by the 1996 romantic comedy-drama sports film Jerry Maguire! Honestly, I find it hard to believe the phrase is so recent, but that's what I found. See link below:
aid
Yes, thesaurus tools like Thesaurus.com or Merriam-Webster's thesaurus can provide lists of synonyms for a selected word or phrase. These tools can help you find alternative words with similar meanings, making it easier to vary your language and improve your writing.
i need help
I can't help but think that it would make you look mature and cool to continue liking someone who others think is a "dork". If your friends look down on you for liking him, then perhaps they aren't the greatest types of people to be friends with.
Help and aid are synonyms for assistance.
they take your order and clean up the lobby... and help others as needed.
ok
avail, help, service
Some good synonyms for facilitate are: ease, alleviate, help, assist and aid.
Two synonyms are protection and guard. If that doesn't help visit a dictionary online.