Realize that Gods are truly our friends and one should not be afraid to communicate with them causally, not only when one needs something. They appreciate that. Everyone can and should establish their own communication with them. There should be no mediators in between. One may have a false understanding that only the chosen ones can communicate with Gods, which creates reliance on others and prevent oneself from advancing.
If one cannon distinguish yet between own thoughts and Gods, use aid. Pendulum is great for confirmations.
If you have a friend who is also one of us, practice hosting. It feels more natural, you would be surprised how easy is to talk to them like this.
If you lucky to have more than one friend, and still have doubt, try talking to the same God with different hosts, so you can validate if they are saying the same thing. This personally helped me to stop doubting that we are not making stuff up.
Doubt is not offensive to the Gods. Many are too afraid to offend them, but they are very understanding and not easily offended, as long as you are being respectful.
It's important to learn to recognize Gods by their energy, as sometimes random entities might try impersonate them. If they "vibes" are off, or what are they saying does not sound like something that they would say, try focusing on the Sigil for longer until it feels right.
We often apply "communication standards" formed by enemy teaching, which makes us feel that Gods won't talk to us, humans, as they are too "above us".
People hesitate to communicate, because they don't want to bother them with something insignificant, but if this is important for you, it will be important to them too as they want us to thrive.
What they don't like however, is when you just ask them for help, do nothing yourself and expect results, especially if you are actually capable of doing it yourself.
And trust me, you are capable way more than you think, however there should be balance and clear understanding of own potential (don't let the ego cloud your judgment) and what is actually realistic.
Treating magic as a form of science helps, as it needs to follow certain laws of physics.
Another thing to realize is that if you ever feel stuck and focusing on one specific stage ain't helping, you should try to be more creative.
For example often due to the forced interactions with enemy religious programs in the childhood, one may have blocked 3rd eye, so the visualization won't work at all.
From personal experience I've seen many people would just give up, because they can't see anything, since they are looking for some form of validation that they things are real. In this case one should not focus on seeing, but on feeling the energy. If feeling is not convincing enough either, which often the case due to the layers of spiritual dirt, then the only thing you can do is to know that the energy is being manipulated in the way that you need.
This is the case where you need to push, even if you feel nothing at the moment. This is where you need to start believing in yourself. This is the ultimate test of your will power. This is where you start building the momentum for the rest of your journey.