How do I Make a save and load to work with level selection

Ok I have 2 levels of a platformer made and a stage selection screen that works but here is the problem.

I have a door in my game and when the main player collides with the door I have the code

Player on collide with door...... System wait 0.5

System Save game to slot "GameSave"

System add 1 to Win1 ( my variable to unlock the next level)

System Go to level select

Now on my stage selection screen I have this code to load the save

System On load complete.....System load game from slot "GameSave"

Where should I put the save code and the load code for it to work correctly.

Try to use 2 save slots one for level 1 and the other for level 2.

Try to use 2 save slots one for level 1 and the other for level 2.

I forgot to reply that I figured it out but thanks. What I did was different I made a global variable for each level and on completion I was able to save in the same slot.