Can smoking cigarettes make my anxiety worse?

Smoking can increase. Anxiety because nicotine acts as a stimulant & smoking decreases lung functioning. Anything that reduces healthy breathing can create anxiety feelings. Smoking often feels relaxing to a smoker because it temporarily reduces symptoms of nicotine withdrawal.
Depends. Nicotine is a stimulant, which can increase anxiety. However, nicotine is addictive, which can cause anxiety with withdrawl symptoms and be improved by smoking. In long run, better to be off of tobacco products.