WordPress TinyMCE problems

Hello,

I’m developing a plugin and need to load TinyMCE into a textarea outside admin. I’ve been trying for so long but there’s no way I can succeed to load it with wp_enqueue_script so I had to do it the old, sucky way by inserting the scripts into the wp_head directly. It is working this way but the problems is it gets loaded in a very weird way (screenshot here), do you have any clues?

Your answers would be tremendously helpful!

Thanks a lot!