Should I practice drawing everyday to get better.?

If scheduled practice is fun and inspires you then yes, set aside some time everyday.  On the other hand, if practice feels like a chore then you may want to stick with being spontaneous.  Either way you should consider spending some time doing formal training whether it is with an instructor or just YouTube videos and books.

Best to you! 

It depends more on how and what you practice. If you are repeating the same errors then you will not get "better". You need to find yourself a set of exercises that suit what you want to produce – for example drawing and shading simple geometric shapes like cubes, pyramids, cones and cylinders might help you apply what you learn to drawing real objects.

Artists draw because they WANT to draw. It's not forced.