Each will reveal different types of problems your audience faces (always include the quotation marks):

"How do you"

"How can I"

"I can't stand"

"I'm struggling with"

"Can someone help"

"Figure out"

"Help me"

"Tips"

"Suggestions"

"Suggest"

"Biggest challenge"

"Biggest challenges"

"Hardest part"

"Biggest struggle"

"Struggle with"