> If u have tips and would be willing to share them I would be glad to hear them.
Reading is faster than re-inventing.  And probably save you a ton in wasted material.
There's probably 500 foam build threads here.  Spend a day reading some.  In a few hours you will learn numerous tips and techniques and you can read about other people's mistakes rather than make them yourself.
There's thousands of man-hours in the existing build threads.  You would be doing yourself a disservice if you didn't read a few of them.
Not to mention all the amazing foam builder YouTube channels.
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https://www.youtube.com/@KamuiCosplay
Amazing foam work.
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Hawk Worley
Sewing for cosplay
    • 
Panda Props & Costumes
A mix of skills for cosplay
    • 
Punished Props Academy
Foam, printed, metal, leather, modding toys to props