conversion of arduino uno to arduino mega

hello guys,i am doing my final year project using arduio mega.My project final review will be conducted very soon.But,the problem is,i lost my arduino mega and i cannot afford my new one.But,i have arduino uno and it has 7pins lesser than the required pins for my project.My question is,is there any ways to increase the pins of the arduino uno? Guys,please help me.

If only we knew how many pins of which types you think you need, we might be able to help.