If you resolve to learn more about technologies, you may want to buy technical books. Here are lists of books on many different I.T. subjects:
Apache Spark
Apache Tomcat
Apache Web Server
AWS
Azure
Bitcoin
Bioinformatics
C#
CFengine
Chef
Docker
E-Discovery
Elastic Stack
Flask
Forensics (Computer Forensics)
Git
Hadoop
Kubernetes
Informatica
Message Queueing Technologies (excluding RabbitMQ)
RabbitMQ
Redis
REST API
Security
Site Reliability Engineering
PowerShell
Puppet
Python
SalesForce
SAP
Squid
SSL and TLS
Terraform
VMware
vSphere
Windows