When the first premonitions start to surface, you should start considering your plans for the future. You should start thinking about resignation only if you have already decided where to move on. Download a resignation letter template and stop for a moment. It’s not guaranteed that you will receive a job offer immediately after you start thinking about changing. Some people have to wait a lot for a job offer, as these things largely depend on the given country and the type of the job. A few can get job offers within a week or so: either they are extremely lucky or have really good connections. It’s easy to burn yourself out if you try to speed up the process aggressively. Be patient. Time is always on your side, but you have to live up to it. It’s up to you. You can start to write your letter of resignation or browse websites like this, but do not act hastily, just wait.