I am electrician by profession from Ghana and I am living in Germany now... How can I use my profession since my German is not good?

You should first check whether the electrician certificate from your home country is recognised here or, if not, which courses you need to take to get it recognised.
Then you need to find a job. Without much German skills, you are limited to roles that do not need to interact with customers, colleagues, partners. I have no idea which roles that might be, but I am sure there are not many. So you may want to take some language classes and improve your German first. Your job chances are much better once you reach B2 level or above.

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