The barrier I had that prevented me from investing in Bitcoin initially was my mindset. I thought that I had missed the train so I opted for a shitcoin because I thought it was going to make me a lot of money in the shortest amount of time. I sold my car so as to have enough funds to invest in the shitcoin which they promised was going to the moon. It didn't. I lost everything. It wasn't until I decided to do my own research. I read some Bitcoin books for beginners, watched a lot of Crypto YouTube channel, listened to podcasts and engaged actively with other Bitcoin enthusiasts that my mindset began to shift and change.
When that happened I bought a small quantity of Bitcoin and started to invest in smaller units monthly.