I often share religous videos on my social media and many people see them. My intenion is to share the video with other belivers who may find it beneficial or bring peace to them. However, I still feel like I’m indirectly giving an impression of a highly pious person which I don’t want to give and it gives me guilt. Are my intentions correct and can I continue to share them or should I stop all together until I feel my intention is 100% pure?

Your intentions are correct. It’s better than giving an impression of a non-religious person which many people are doing. Do it with the intention of spreading knowledge and guiding people including yourself. If everyone was afraid of what others think then there would be no one doing anything good.