public function update_profile(Request $request) {
        $this->validate($request, [
            'name' => 'required|string|max:255',
            'email' => 'string|email|max:255|unique:users',
            'password' => 'string|min:6|confirmed',
        ]);

        $user = Auth::user();

        if($request->surname != Auth::user()->surname){
            $user->surname = $request->surname;
        }
        if($request->name != Auth::user()->name){
            $user->name = $request->name;
        }
        if($request->patronymic != Auth::user()->patronymic){
            $user->patronymic = $request->patronymic;
        }
        if($request->sex != Auth::user()->sex){
            $user->sex = $request->sex;
        }

        $user -> password = bcrypt($request->password);

        $user->save();

        return redirect()->route('user.profile');
    }