Welcome to the ASEAN Hive Community. Yes, your friends are right, it's good to have at least 25HP in the beginning or otherwise you can have trouble commenting, posting, and voting. With 70HP you have more than enough Resource Credits to do all activities on Hive.
For success on Hive and in this community, I recommend your posts be a minimum word count of 250+ (single language) , contain at least 3 to 5 (original if possible) images, and also try to read, comment, and vote on 10 posts for every post you publish. This kind of engagement will contribute to the sustainability of Hive and also help you gain followers while you are still new here.
OK, thank you, sir