If you find it difficult to start a conversation, Polish matchmaking site
feelflame.com/ will be a great choice. The platform has an interesting feature - prompts for the first messages. I always use them if I am too nervous, at the moment when I find a profile of an attractive girl. For example, after selecting a partner, the system can suggest a topic for discussion based on your common interests. This greatly simplifies the first step. You should try how it works for you!