Poor spelling and grammar doesn’t stop you from writing, only shame does and if you are aware and content with your weakness with the written language that means you can right 😉
The key to communication is that information passes from one person to another correctly and if I can read your writing and understand what you have to say then you have successfully communicated with me.
Sometimes I might have to fill in and translate a word such as were, where or wear but I’m intelligent enough to be able to do that. There are some people who can win spelling Bee’s yet their content is mind numbing boring and there are others who can’t spell to save their life yet their content is amazing. So good communication is not related to good spelling although it helps.
If your written word is as bad as mine or worse, don’t worry, I still want to hear what you have to say, however you say it, I’ll figure it out I’m sure.