PV surplus for my tesla

Hello, I’m currently learning programming and I’m learning more and more. Now I want to program a PV surplus for my Tesla. So far I’ve managed to get a meter to increase by one when I draw from the grid (in future the amps should be increased here) and also decrease by one. But now I want to connect everything to the amps of my Tesla. If there is a surplus, increase by 1 or decrease by 1 if there is no surplus. The termination is “number.lenard_charging_amps”. I don’t know what to do next.

alias: Tesla Charging Control
description: Adjust Tesla charging amps based on solar power availability.
trigger:
  - platform: time_pattern
    seconds: /10
condition:
  - condition: and
    conditions:
      - condition: time
        after: "07:00:00"
        before: "19:00:00"
action:
  - choose:
      - conditions:
          - condition: numeric_state
            entity_id: sensor.growatt_sph_3_phase_grid_power
            above: -10000
            below: -250
        sequence:
          - service: counter.increment
            target:
              entity_id:
                - counter.zahler_ampere
            data: {}
      - conditions:
          - condition: numeric_state
            entity_id: sensor.growatt_sph_3_phase_grid_power
            above: 250
            below: 10000
        sequence:
          - service: counter.decrement
            metadata: {}
            data: {}
            target:
              entity_id: counter.zahler_ampere

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