I had really bad sickness from about 6 weeks onwards. At 13 weeks, I started to take medication which did help but caused constipation so I could only take sparingly. I vomited at least two or three times a day (even while on medication) until around 22 or 24 weeks. After that, I only threw up a few times a week but had absolutely no interest in food.
The positive part though is that it was completely worth it. My daughter is 8 months old now and I would not be without her, worth every second of it. I remember thinking during the pregnancy that it would never end and that there was NO WAY I would ever have a second baby but I would. I'd do it again. I sympathize because I know that it is miserable but it is temporary and hopefully yours will go by the second trimester. Sending wishes for a happy and healthy pregnancy!