You do have the 'freewill' to choose to believe what parts and pieces you select to believe.
Free will gives us all choices. But our choices are the things that will be judged by God - not our guilt.. our choices. God gives you a set of conditions to get to heaven and a set to get to hell. If you like no rules and anything goes, that's what hell is all about. The absence of God and the absence of any controlling authority. Imagine eternity trying to survive the likes of Hitler and Stalin. God will look at your choices and determine by judgement, where you decided you want to spend eternity.. In heaven where there is justice, mercy and love.. or in hell, where there is injustice, no mercy, hatred, lust and deceit. It's your choice and always has been. God just determines what you chose by how you comported yourself while you had the chance. If you choose Christ as your savior and follow that line, you go to heaven. If not, you get to spend eternity pulling daggers out of your back as a slave to the most ruthless and powerful - while being burned that is. fun fun fun.