how to Create an action after you have already edited the photo

thedonleeboy  wrote I believe i've closed the file already and re-opened it. so i d not think i am able to see anything when i open window> history

Correct however if you configure your Photoshop Histort Log preference what you did would have been logged into your "Photoshop Edit Log.txt" in whatever folder you configured in your Preferences. In there you wous see data like this.

2018-08-26 09:52:48 Photoshop quit
2018-08-26 09:52:53 Photoshop launched
2018-08-26 09:53:31 File LO2G5037.CR2 opened
2018-08-26 09:53:32 File LO2G5037-1 opened
New Layer
Make layer
3
Rectangular Marquee
Set Selection
To: rectangle
Top: 1230 pixels
Left: 383 pixels
Bottom: 1878 pixels
Right: 1923 pixels
Fill
Fill
Using: foreground color
Opacity: 100%
Mode: normal
Deselect
Set Selection
To: none
Custom Shape Tool
Set Work Path
To: custom shape
Name:  “Chris”
Top: 1332 pixels
Left: 916 pixels
Bottom: 1770 pixels
Right: 1354 pixels
Undo
Custom Shape Tool
Make fill layer
Using: fill layer
Type: gradient
With Dither
Angle: 90°
Type: linear
Gradient: gradient
Name:  “Black, White”
Form: custom stops
Interpolation: 4096
Colors: color stop list
color stop
Color: RGB color
Red: 0
Green: 0.003
Blue: 0.155
Type: user specified color
Location: 0
Midpoint: 50
color stop
Color: RGB color
Red: 255
Green: 255
Blue: 255
Type: user specified color
Location: 4096
Midpoint: 50
Transparency: transparency stop list
transparency stop
Opacity: 100%
Location: 0
Midpoint: 50
transparency stop
Opacity: 100%
Location: 4096
Midpoint: 50
Shape: custom shape
Name:  “Chris”
Top: 1290 pixels
Left: 826 pixels
Bottom: 1850 pixels
Right: 1264 pixels
Stroke Style: vector stroke
2
With Stroke Enabled
With Fill Enabled
Stroke Width: 4 pixels
Stroke Dash Offset: 0 points
Stroke Miter Limit: 100
Stroke Line Cap: Butt Cap
Stroke Line Join: Miter Join
Stroke Alignment: Inside
Without Stroke Scale Lock
Without Stroke Adjust
Stroke Dash Set: none
Stroke Blend Mode: normal
Stroke Opacity: 100%
solid color
Slot Color: RGB color
Red: 0
Green: 0
Blue: 0
300
4
Select vector mask path of current layer
Modification: Remove
2018-08-26 09:56:21 File C:\Users\jjmac\Desktop\Output Folder\LO2G5037-1.psd saved
Save
As: Photoshop
With Maximize Compatibility
In: C:\Users\jjmac\Desktop\Output Folder\
585
2018-08-26 09:56:26 File LO2G5037-1.psd closed
Close
585
true
2018-08-26 09:56:28 Photoshop quit