How to make a system that after each level your health gets one more? [unsolved]

Hello I tried to make a script that when you level up you gets one more maxhealth. PROBLEM: if player has more xp it goes example: you are 4 level gets 1000 xp and now level 7 you skiped level 5,6 so it means you didn't get that + 1 max health. How can I make sure you get at every level even you skipped some of them. Gets + 1 like level 1 = 100 MaxHealth, level 7 = 107, level 200 = 300. Something that checks each time as a level get up.

script is not a local script but still inside the playergui.

I hope my question is understandable.

wait(2)
local player = script.Parent.Parent
local unlock = player.leaderstats.Level
local MH = player.leaderstats.Vis01 -- max health 
local S = player.leaderstats.Vis02 -- max speed
local J = player.leaderstats.Vis03 -- max jumppower
local check = player.leaderstats.Vis04

while true do
	wait(2)
	-- problem --
	if unlock.Value == 2 and check.Value == 1 then
		MH.Value = MH.Value + 1
		check.Value = check.Value + 1
	end
	if unlock.Value == 3 and check.Value == 2 then -- check is only here for preventing loops or when player rejoin they don't get a double maxhealth (check value does save too)
		MH.Value = MH.Value + 1
		check.Value = check.Value + 1
	end
	-- ETC...
	if unlock.Value == 20 and check.Value == 19 then -- works
	S.Value = S.Value + 1
	check.Value = check.Value + 1
	if unlock.Value == 25 and check.Value == 24 then -- works
	J.Value = J.Value + 1
	check.Value = check.Value + 1
end
end
end

Thank you

I think this is how to fix it, but if I'm wrong someone can do it.

You didn't have to go through all those steps, you just had to set it to where it would add the amount of (levels - 1) to the Max Health Value every time a level was added.

wait(2)
local player = script.Parent.Parent
local unlock = player.leaderstats.Level
local MH = player.leaderstats.Vis01
local S = player.leaderstats.Vis02 -- max speed
local J = player.leaderstats.Vis03 -- max jumppower
local check = player.leaderstats.Vis04

if unlock.Value == 50 and check.Value == 0 then
	S.Value = S.Value + 1
	check.Value = check.Value + 1
end

while true do
	wait(2)
	if unlock.Value > 1 then --Check to see if level is greater than 1
		if MH.Value = MH.Value + (unlock.Value - 2) --Checks for the previous MH Value
			MH.Value = MH.Value + (unlock.Value - 1) --Adds a number equivalent to the amount of levels - 1 so it does not count level 1
		if unlock.Value == 50 and check.Value == 0 then 
		S.Value = S.Value + 1
		check.Value = check.Value + 1
	end
end
 

This code is super inefficient and super hackable. Recommend you fix it before continuing.