The former Ipswich striker saw the Magpies make a losing start to life without Keith Curle, who was sacked following the 2-1 loss at bottom-club Hartlepool on Saturday, with an early strike from Sam Hoskins and a late effort from Marcus Haber. Kiwomya, though, felt his side had deserved better.
"There has been a lot of change within 24 hours but they gave me 100 per cent. We gave them an early goal which was bit of a setback but our reaction was excellent," he said.
"We went in there, we put balls in the box and we put a lot of pressure on. They changed their system to stop us because they didn't want us coming through the middle. We just couldn't get that ball in the net which has been a problem for most of the season to tell the truth.
"I haven't been told how long I have got. They asked me to take it on and it was very much enjoyable. It's a good experience for me and the lads worked hard. I will keep going until told otherwise."
Stevenage boss Gary Smith felt the early goal helped settle his young side down, particularly given a poor recent run of home results.
He said: "It was a very tough night to play football. When there is a bit of edginess about the group - and there has been at home - to find the back of the net as quickly as that and to start so brightly was not only pleasing but settling for the players.
"There was a determination that probably we haven't seen for a little while here. I thought it was a real all-round good performance and capped off with a good goal late on to seal it. It was a real competitive game. They are a good side Notts County.
"We could have made a little bit more of our possession but didn't quite find the right pass. It was always going to be a tough night, our form has been tough and edgy here and we were against a tough side."
Smith also had praise for goalscorer Hoskins and added: "He has been a good addition but he is a young lad still learning his trade. He is a talented boy and he has given us something different."