diff --git a/advanced_expert/practice_your_kills/README.md b/advanced_expert/practice_your_kills/README.md
new file mode 100644
index 0000000..ceabde1
--- /dev/null
+++ b/advanced_expert/practice_your_kills/README.md
@@ -0,0 +1,18 @@
+### practicing your hacking skils
+
+<br>
+
+* [Capture the Ether](https://capturetheether.com/)
+* [the ethernaut](https://ethernaut.openzeppelin.com/)
+* [Paradigm CTF 2022](https://github.com/paradigmxyz/paradigm-ctf-2022) and [Paradigm CTF 2021](https://github.com/paradigm-operations/paradigm-ctf-2021).
+* [Damn vulnerable DeFi](https://www.damnvulnerabledefi.xyz/)
+* [A collection of EVM puzzles](https://github.com/fvictorio/evm-puzzles)
+* [Gamefication vault](https://hats.finance/gamification)
+* [Cipher Shastra](https://ciphershastra.com/)
+* [Etherhack](https://etherhack.positive.com/#/)
+* [DeFiHack.xyz](https://www.defihack.xyz/)
+* [w3b s3c](https://www.w3bs3c.com/tools)
+* [Crypto blacklist](https://www.cryptoblacklist.io/en/ethereum-blacklist/)
+* [Vyper Punk](https://github.com/SupremacyTeam/VyperPunk)
+* [more blockchain ctfs](https://github.com/minaminao/ctf-blockchain/)
+* [list of blockchain CTF competitions](https://github.com/blockthreat/blocksec-ctfs)