Verb conjugation of "praktizieren" in German

Thanks again for your time. I attached my avatar, it is very similar to the previous one. I have guided the development of the website, and I feel free to share my knowledge with others.
I am glad that i have met you. I'm unemployed at the moment. I have to visit the unemployment office every day, that is the law here. I have studied computer science. I hope that I can help too.
Many thanks for your suggestions. They are very useful. I can't answer your mail now, but I will come back to you later when I'll have more time. I hope that you and your family are well!