Short cut

While routine or doing office work ,do not use short cut instead of full words. You argue that it is time saving, it is ok but you do not know  that this act made some changes in your memory in your mind. In long time original word is partially or fully erased from your mind and whenever you try to write this word,may possible that you can not spell correct. One more thing, for more better results to improve your english language you may be off predictive text in mobile keyboard setting.
Thanks and Regards,
Dinesh Parmar.