Masternodes can be launched independently, but in this case, you will have to monitor its performance, server and other details around the clock. If a node goes offline, after recovery it will be at the end of the reward queue.
What to do after purchasing a masternode?
Relax. Ideally, forget about the investment for at least a couple of days and stop checking the courses every five minutes. The service is automatic, the network operates in strict accordance with the code.
Even if the masternode goes offline, sooner or later it will receive a reward.