Yep, I can see the lump. And you're doing right!
You can feed your guy every five days, or up to every seven day. I fed my every seven days just because it's easy for me to remmember. And I don't plan on breeding. Also a general rule is only feed your snake something (pinky, hopper etc) thats 1 1/2 of snake widest point. When you are referring to food size you can't go by the snake age. you go by the girth of it.
Good luck with your snake
Keep us posted.