If you have absolutely 0 experience (as I did when I started modeling) then blender should be fine. Advantages to it are it's free and there are a ton of tutorials online for free as well. I used YouTube tutorials and just googling questions to learn all that I have learned. I am by no means a pro or even good, but I have come a long way in the past few months. The problem with blender is that the tutorials are often for older versions of blender. It feels like blender is constantly being updated and they move stuff around and change keyboard shortcuts and whatnot kind of alot. The general ideas remain the same but how to do them on the newest version might be different than what is shown in the tutorial.
My advice for starting is start with something other than this suit. Start with something simple and easy. Keep in mind that it's gonna take a log time before you can create a model as detailed and beautiful as some of the ones available here on the forum. Also, when your model sucks and looks terrible, don't get discouraged. It's like any other part of this craft- the first thing you pep or foamsmith looks terrible (usually) and only gets better through practice. I modeled the same helmet 3 times on blender before it looked at all like a helmet (warden helmet from For Honor) and that's a pretty simple shape.
As always ask questions, use Google, and keep the faith. You can figure it out - it just takes time. And if you do get this suit modeled you will be a master (it looks hard). Also if you do get this suit modeled and make it available here on the forum, you will be doing a great service to our community.