Can I get advice from an ustaz and a professional counsellor at the same time for the same problem?

Yes, and the two complement each other when each handles the part that suits it. A knowledgeable ustaz guides from the angle of rulings and spirituality, while a counsellor helps with communication and emotional skills. Make sure the advice you receive does not conflict; if it does, take questions of rulings back to the religious side and relationship questions to the counsellor. Avoid taking bits of advice from too many people until you are confused. Choose one trustworthy person from each field and follow through diligently. Combining religious guidance with practical skills usually gives a more balanced result. Pray to be led to the right people. See counselling.