For only being with turtles 1 year you are way ahead of some others in this hobby. I preach observing well , some don't get it and only see a turtle when it's feeding time. Since they can't talk there actions are the only way to communicate with us. He/she sounds happy , good job ! Doing turtle things . Will be showing more of it's ways down the road. Watch and there will a day there's something he like's only in it's place. My Piggley would always move this one piece of driftwood . I tied it to a brick when he was 5" big to see what would happen. I put it all the way on other side of the tank... I watched for a hour , using his front legs a few pushes , when they got tired used his back legs then his left side then right side . All the way back to where it was. That was with a regular brick tied to it ! Being back where he wants it , the brick is now off , he has never moved it again or I . He won !!! Even as a 1" baby he was like that but too small to move big things. Didn't stop him from trying , so I adjusted. Center hole in that driftwood is one of his sleeping spot's and the top is his feeding area. It's a stock tank and my chair is next to it. I hang my hand in it above that driftwood and he sit up there playing with my fingers. He has a dry dock to watch TV on. I train a baby with a TV on to get use to the noise. Now Piggley wants the TV on all day , he like most shows. His basking area is located were he can watch TV also.
This works for feeding your size turtle ( A Baby Still) . The 2/3rd rule for the protein side. A good/high quality food ! An amount that would fit in 2/3's his head if were empty , not including its neck. Also being 1 year old about say about 2 to 2 1/2" in size a piece of leaf lettuce the size of it shell. Never too soon to introduce veggies. This is a day . You can divide that amount into two servings but that amount only. Feeding a turtle goes by size not age and will need to be adjusted all the way to adult. By that time should be on 60-70% veggies and protein every other day. Better to feed a little less than over feeding that causes all kind of health problems inside and out. Make sure all in the home knows this and maybe make a little sign by the food saying already been feed ! Careful on any treats , use rarely. With a baby I rather see a treat as two or three extra pellets. (OR) You could skip the veggies being still almost a baby and use all protein if a good / high quality pellet , an amount that would fit his empty head size a day . But once about 3 to 3 1/2" diet will change a little and veggies should be use too. Myself always introduce veggies early , that's just me. Babies growing very fast need the high protein and adults are vegetarians with protein maybe twice a week.
The begging is hard for me too and I have 55 years with turtles. Now a days once feeding is over and the begging still going on I just play with Piggley until his mind is off food. Work's for us. Observe well and prevention is the key's in this hobby. You are doing great !!