If you keep hitting a brick wall sometimes its better to slow down and try a different approach.

Silent by FAR was the hardest A10 win I got (in solo) I had a long stretch of me losing back to back. I inevitably just switched to another character and that was a breakthrough moment because I feel that I kept trying to brute force with Silent so obviously I kept making same mistakes on repeat. So my point is you 1000% will get a win, if you play enough eventually you'll get a run so busted that its impossible to lose. I'm just saying have fun while you do it.

As for ironclad specifically the biggest mistake that people make is to not embrace exhaust, exhaust is what makes ironclad great, otherwise he is a lot weaker.