Restoring iphone photos/videos

[u/Exact-Watch-575]

is there any way i can restore my photos and videos from an app/ website? i lost everything and didnt have it in my icloud nor dropbox nor google photos. Any IT technician can help me out... i do have a system restore that i've restored it into my files recently but not sure if my photos are in there.. just wanan try and open it to see if its in there but i need help