No, there is a difference between making mistakes and flagrantly willfully sinning against God.
This is the point of Hebrews 10:23.
1. If you have sex outside of marraige, It is willfull and fragrant.. No matter what, you knew what you were doing.
2. If you get drunk, It is willfull and fragrant, You knew what you were doing
3. If you get angry, It is willfull and fragrant, You knew what you were doing
4. If you covet something your neighbor got last night, It is willfull and fragrant, You knew what you did
5. If the speed limit is 55 and you decide to go 70. It is willfull and fragrant, You knew what you were doing
6. If you know to do right, and do not do it, It is willfull and fragrant, you knew what you were doing
7. If you bear false witness, other than in ignrance, it is willfull and fragrant, You knew what you were doing
8. If you (insert any sin), it is willfull and fragrant, You knew what you were doing (unless as a child of God, you did not know something was a particualr sin, Which in the grand scheme may be called accidental. But God still said, the penalty of sin is death. so you have no excuse.
So to say that no one who willfully and fragrantly sins will get to heaven, is to condemn all people. It makes it impossible for ANYONE to get to heaven