It took me some time, but I've learned to recognise if a certain thing is good to say - before that I was quite socially awkward. Now I can easily evaluate anything and feel how it sounds like. I am even getting better. But I can't think of something that sounds like X, and this pretty much kills my game, if I want to improvize. I can't think of an opener, a neg, a flirty remark, or pretty much anything, except for normal things to say. The encounter therefore sounds like I am just being friendly with her.

It's like I have a very severe lack of creativity, but only in this field. How did you guys solve it? Is it sufficient to only use learned lines (I doubt it.) Did practice solve it? Or did you have this problem at all?

Practice is everything. After you get out there and have some conversations with women, you can always reflect on what happened and decide what you could have said that would have been more effective. That way you can learn for next time.

Also, while texting isn't generally a good way to build attraction, you can also practice this by texting women instead of talking to them. That will give you plenty of time to think of creative things to say without having any real pressure. It will carry over to real-life encounters with enough practice.

Most guys will have or have had this problem many times with women. It takes a lot of things to become 'natural' when holding conversations with women. Practice is obviously the way to get better when talking to women.

The way I got around it was to get into a mind state in which I really didn't care what people around me thought of me (relaxed and not anxious). The aim was to be comfortable to speak freely and not be uncertain of what I was saying. Alpha and not beta. I also made sure that this state was almost C&F because I found that you can entertain yourself and the girl with what you say. That is the best combination.

Using strong body language is one of the most powerful ways of getting into a good mood. Once you are relaxed, your conversation will 'flow'.

ALSO don't forget to start leading a more exciting and busy life. Make a plan to get out the house and do some activities you enjoy. This gives you sooo much more to talk about when with women.