pretty vague question but ill do what I can.

start by disconnecting your cable from your front deraileur. hold onto the cable end and apply slight pressure. try shifting. does it feel the same or different. if its the same your problem is either in the cable/housing, or shifter.

If it feels easier then your issue is with the setup of your front deraileur.

shifter/cable issue.
1. verify your housings are all seated properly in the braze ons.
2. no kinks or bends in the cable? pull the cable out and look for broken strands which may be catching.
3. alot of dirt inside housing will cause an issue.
4. you can spray wd40 inside your shifter to clean it out if it feels gummed up
5. replace cable and housing. be sure to use metal housing endcaps everywhere you can

Deraileur issue
1. with front deraileur disconnected see if you can push and hold the cage outward as you turn the cranks. does the chain move from one ring to the next. if not you need to adjust the limit screws
2. inspect the deraileur cage and spring, no damage? is it mounted to the frame in the optimal position??

check all these things. if its still problematic repost with all that info, or then bring to a shop.
gluck.