Not all products work the same for everyone. I'm using Herbal Essences Totally Twisted Curl Boosting mousse, but this mousse does not have a super strong hold. I'm not sure if mousse would for you, you might just wanna try it and see what it does. Also with the tresemme conditioner, make sure that it is the naturals brand. The regular ones will have silicones and sulfates in them
You could also look into KCCC (Kinky-Curly Curling Custard), I've never tried it but it works great for a lot of people. I think it's like a gel, but maybe different? Can't really say much about it
If you look at what other people are using, you might find another product that you wanna try out. Most people put their hair properties and products in their signature, so you can go from there. Good luck!