Whether you can grab your train ticket depends on many factors, including the ticket grabbing speed of the ticket purchasing platform, the supply and demand of tickets, and the time period you choose to buy tickets. Under normal circumstances, it is recommended that you pay attention to relevant information before the official ticket sales begin, and try to grab tickets as soon as possible. If you fail to grab a ticket, you can apply for a refund and then purchase it again based on your new travel plan. However, please wait patiently and pay attention to relevant developments as to whether you can get tickets.