First answer your first question. Is the training useful? As far as I know, you absolutely don't have to worry about not finding a job after studying, and the basic conditions are good, and the electronics major is also in line with the embedded system. Besides, you have a bachelor's degree. After four months of training, it is no problem to find a job with a monthly salary of 3000. I graduated last year, majoring in communication. Some students got 4800 after training and some got 3500. There are 3000 newly graduated college students who have received basic training. Firstly, embedded talents are very popular now, and secondly, because of personal learning comprehension and training experience. If you want to choose training, this is basically the market.

Besides, according to your description, it's really difficult. There are still10,000 loans outstanding. In fact, it is also possible to get a training loan. You can consult the training institution about this. I don't quite understand. If you really can't teach yourself, you must be prepared to fight hard. On the basis of your university, self-study should be possible. But embedded self-study will make it very difficult for you to chew on some knowledge points, as long as you have perseverance. If you encounter difficulties in your study, you can surf the Internet. As you said, the official website and Technology Forum in Huaqing Vision is a good place for you to study. If you have nothing to do, you can go shopping. There are constantly learning materials and video updates on it. You can download it and have a look. Huaqing Vision regularly holds several free lectures every year. You can also participate. I believe it will help you. I wish you an early academic success!