Don't focus on karma farming at first.
Focus on familar with platform layout just you use other social media like Instagram, Facebook....
Reddit is different so spend time and spend on your specific subreddit you have interest of and write helpful content and learn from others comment, vibe of subreddit post and familar with all the rules like don't copy paste ..
Give 1-2 month times , then you learn from reddit itself will teach how and what to post and best time to post at evening and morning..
Don't be spammy now days all medium to high traffic subreddit force to do Reputation filter , don't try posting on new account gain karma through comment first..
Don't be aggressive if post removed instantly....rather spend 3-4 minutes scrolling leave one line helpful comment reply that's and if spending message to reply reply those messages.